Dr Ephraim J. Gongden. Effectiveness of Flipped Classroom Approach (FCA) on Students’ Achievement and Retention in Chemical Equilibrium in High Schools in Jos, Plateau state – Nigeria. IJEduExcInn [Internet]. 2025 Feb. 20 [cited 2025 Sep. 17];2(02):47-61. Available from: http://universalscholars.org/index.php/ijeei/article/view/64