Ahiakwo, M. J. and Ene, M. O. (2022) “University first year chemistry students’ and teachers’ perception of difficulty of select topics in organic chemistry in rivers state of Nigeria”, African Journal of Chemical Education, 12(1), pp. 82–94. Available at: https://www.ajol.info/index.php/ajce/article/view/221314 (Accessed: 21 September 2026).