Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
* Total Citation Counts Rankings
World Rank
523,706
Country Rank
12
Institution Rank : 4
![](https://cdn.adscientificindex.com/logos/11375.jpg)
![Sierra Leone](/flags/sl.png)
![Kelleh Gbawuru Mansaray](https://cdn.adscientificindex.com/pictures/97/100882.jpg)
Renewable energy technologies
greenhouse gas mitigation
solid waste management and utilization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,513
466
0.308
* Total Citation Counts Rankings
World Rank
631,392
Country Rank
13
Institution Rank : 7
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Hindowa Lebbie](/user/assets/images/profile/no-profile-photo.png)
Renewable energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,111
400
0.360
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
523,706
![Sierra Leone](/flags/sl.png)
12
![](https://cdn.adscientificindex.com/logos/11375.jpg)
4
Kelleh Gbawuru Mansaray
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,513
466
0.308
![](https://cdn.adscientificindex.com/logos/11375.jpg)
Renewable energy technologies
greenhouse gas mitigation
solid waste management and utilization
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
631,392
![Sierra Leone](/flags/sl.png)
13
![](https://cdn.adscientificindex.com/logos/6383.jpg)
7
Hindowa Lebbie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,111
400
0.360