Oigara , Denis K., and Frank O. Masese. “ Evaluation of the South African Scoring System (SASS 5) Biotic Index For Assessing The Ecological Condition of the Mara River, Kenya ”. African Journal of Education,Science and Technology (AJEST) 4, no. 2 (December 28, 2017): Pg 41–51. Accessed November 7, 2025. http://ajest.org/index.php/ajest/article/view/156.