Berhe, G. G., Tesfemariam, G. M. . and Weldemichae, G. H. . (2024) “Challenges for effective teaching of chemistry in secondary schools of developing countries: A review”, African Journal of Chemical Education, 14(2), pp. 61–100. Available at: https://www.ajol.info/index.php/ajce/article/view/272356 (Accessed: 18 October 2026).