Dr. Samuel Kiprono Langat, and Prof. Grace Wanjiku Ndegwa. “Linguistic Proficiency and Its Impact on Biology Instruction in Kenyan Secondary Schools”. Frontiers in Emerging Multidisciplinary Sciences 1, no. 1 (December 25, 2024): 20–24. Accessed August 23, 2025. https://irjernet.com/index.php/fems/article/view/14.