Aku, P. E., Hussaini, P. S. and Gabi, S. S. (2022) “EFFECT OF STIMULUS VARIATION STRATEGY ON STUDENTS’ ACADEMIC ACHIEVEMENT IN ENERGY IN NASARAWA STATE, NIGERIA”, African Journal of Humanities and Contemporary Education Research , 3(1), pp. 51–59. Available at: https://publications.afropolitanjournals.com/index.php/ajhcer/article/view/79 (Accessed: 11 October 2025).