Citation Rankings
Highly Cited Researchers
Alvan Ikoku Federal College of Education Owerri Highly Cited Researchers CitationOthers Rankings (Sort by last 6 years Citation Index) 2025
Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
Radiation and Health Physics
Nuclear Physics and Applied Nuclear Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
281
190
0.676
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Macroeconomics
Econometrics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
182
133
0.731
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Philosophy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
127
127
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
educational issues
academic problems
gender issues
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
127
124
0.976
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
Curriculum
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82
64
0.780
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
environmental microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82
63
0.768
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :7
Animal Science
Animal Physiology
Animal Reproduction and Fertility
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60
60
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :8
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67
55
0.821
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :9
Educational Technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63
52
0.825
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :10
Parasitology
Entomology
Public Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79
51
0.646
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :11
CURRICULUM
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62
51
0.823
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :12
Measurement and Evaluation
Psychology
Educational Research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59
49
0.831
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :13
Physical Chemistry
Materials Chemistry
Corrosion Science
Electrochemistry
Thermodynamics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41
39
0.951
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :14
psycholoy
education
educational psycholoy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56
37
0.661
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :15
Mathematical Modelling and Statistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37
37
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :16
Applied and Environmental Geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43
36
0.837
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :17
Education
Business
Entrepreneurship and Office administration and management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38
36
0.947
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :18
Building Technology
Construction
Transportation
TVET
Built Environment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42
34
0.810
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :19
Education
Psychology
Research
Peer Mentoring
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39
34
0.872
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :20
Agricultural Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72
33
0.458
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :21
English Language (Phonology
Morphology & Syntax)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45
31
0.689
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :22
Resource Economics
Food Security
Environmental Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46
29
0.630
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :23
PRODUCTION ECONOMICS AND FARM MANAGEMENT
FOOD SECURITY AND SUSTAINABILITY
VALUE CHAIN
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47
27
0.574
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :24
Environmental Management and Agriculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41
27
0.659
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :25
Economics
Energy & Environmental Economics
Econometrics & Statistics
Personnel Economics
Behavioural Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27
27
1.000
* Last 6 Years Citation Counts Rankings
Rankings
1,128,111
10,396
4
Ranking Based On Selection: 1
Henry Uzoma Emelue
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
281
190
0.676
Radiation and Health Physics
Nuclear Physics and Applied Nuclear Physics
* Last 6 Years Citation Counts Rankings
Rankings
1,293,565
13,996
8
Ranking Based On Selection: 2
Nwosu Chinedu Anthony
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
182
133
0.731
* Last 6 Years Citation Counts Rankings
Rankings
1,317,019
14,505
9
Ranking Based On Selection: 3
Ukhurebor Humphrey
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
127
127
1.000
* Last 6 Years Citation Counts Rankings
Rankings
1,327,042
14,736
10
Ranking Based On Selection: 4
Nonye Onyekwere|Nonye Adamma Onyekwere, Onyekwere Nonye Adanma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
127
124
0.976
* Last 6 Years Citation Counts Rankings
Rankings
1,611,571
21,668
16
Ranking Based On Selection: 5
Perpetua Chinyere Ifegbo|P.C Ifegbo, P. Ifegbo, Perpetua Ifegbo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82
64
0.780
* Last 6 Years Citation Counts Rankings
Rankings
1,617,657
21,833
17
Ranking Based On Selection: 6
Nwoko Ogadinma|Njoku,O.E.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
82
63
0.768
* Last 6 Years Citation Counts Rankings
Rankings
1,638,976
22,401
19
Ranking Based On Selection: 7
Chinwe Uchechi Nwachukwu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60
60
1.000
Animal Science
Animal Physiology
Animal Reproduction and Fertility
* Last 6 Years Citation Counts Rankings
Rankings
1,670,695
23,221
20
Ranking Based On Selection: 8
Tim-Ashama, Akunna C
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
67
55
0.821
* Last 6 Years Citation Counts Rankings
Rankings
1,691,536
23,843
21
Ranking Based On Selection: 9
Nzeako, Rowland Chibuike
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63
52
0.825
* Last 6 Years Citation Counts Rankings
Rankings
1,697,682
24,002
22
Ranking Based On Selection: 10
Nzewuihe, Gospel. U
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79
51
0.646
* Last 6 Years Citation Counts Rankings
Rankings
1,698,898
24,058
23
Ranking Based On Selection: 11
Fidelia N. Iwuamadi|DR FIDELIA N. IWUAMADI, DR FIDELIA NGOZI IWUAMADI, DR IWUAMADI, FIDELIA N.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62
51
0.823
* Last 6 Years Citation Counts Rankings
Rankings
1,713,450
24,432
24
Ranking Based On Selection: 12
Rita Chigozie Osuala|Rita Osuala, R. C. Osuala, Osuala Rita Chigozie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59
49
0.831
* Last 6 Years Citation Counts Rankings
Rankings
1,794,497
26,697
30
Ranking Based On Selection: 13
Okeke Pamela Ifeoma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41
39
0.951
Physical Chemistry
Materials Chemistry
Corrosion Science
Electrochemistry
Thermodynamics
* Last 6 Years Citation Counts Rankings
Rankings
1,809,316
27,066
31
Ranking Based On Selection: 14
Azukaego İfeoma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56
37
0.661
* Last 6 Years Citation Counts Rankings
Rankings
1,813,789
27,243
32
Ranking Based On Selection: 15
Joy Uwakwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37
37
1.000
* Last 6 Years Citation Counts Rankings
Rankings
1,819,570
27,381
33
Ranking Based On Selection: 16
Blessing Ejiogu|Ejiogu B.C.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43
36
0.837
* Last 6 Years Citation Counts Rankings
Rankings
1,820,656
27,425
34
Ranking Based On Selection: 17
Lucy Udoka Dikeocha|Dikeocha Lucy Udoka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38
36
0.947
Education
Business
Entrepreneurship and Office administration and management
* Last 6 Years Citation Counts Rankings
Rankings
1,837,663
27,899
36
Ranking Based On Selection: 18
Onatere-Ubrurhe Joyce O|ONATERE JOYCE O
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42
34
0.810
Building Technology
Construction
Transportation
TVET
Built Environment
* Last 6 Years Citation Counts Rankings
Rankings
1,838,303
27,924
37
Ranking Based On Selection: 19
Annabel Uchechukwu Obinna-Akakuru
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39
34
0.872
* Last 6 Years Citation Counts Rankings
Rankings
1,844,797
28,078
38
Ranking Based On Selection: 20
Alaribe, Mary Otitochukwu|Alaribe, M. O., Mary Otitochukwu Alaribe, M. O. Alaribe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
72
33
0.458
* Last 6 Years Citation Counts Rankings
Rankings
1,865,681
28,699
40
Ranking Based On Selection: 21
Queen Eneremadu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45
31
0.689
* Last 6 Years Citation Counts Rankings
Rankings
1,885,411
29,305
42
Ranking Based On Selection: 22
Ijeoma Ezebuike
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46
29
0.630
* Last 6 Years Citation Counts Rankings
Rankings
1,906,002
29,951
43
Ranking Based On Selection: 23
Uzoma Onyewuchi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47
27
0.574
PRODUCTION ECONOMICS AND FARM MANAGEMENT
FOOD SECURITY AND SUSTAINABILITY
VALUE CHAIN
* Last 6 Years Citation Counts Rankings
Rankings
1,906,644
29,982
44
Ranking Based On Selection: 24
John I. Offor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41
27
0.659
* Last 6 Years Citation Counts Rankings
Rankings
1,912,203
30,202
45
Ranking Based On Selection: 25
Ukwunna, Joseph C.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27
27
1.000
Economics
Energy & Environmental Economics
Econometrics & Statistics
Personnel Economics
Behavioural Economics