ADEWUMI GS, ADEOYE GA. Interaction Effect of Two Instructional Strategies and Mental Ability on Students’ Achievement in Abstract Concepts in Biology. IJE [Internet]. 2023 Apr. 24 [cited 2025 Jan. 15];43(2):14-28. Available from: https://ije.unilorinedu.sch.ng/index.php/ije/article/view/86