S. O, Adodo, and Ogundare Samuel Akinola. 2016. “Two Puzzle Models-Based Instructional Strategies’ Efficacy and Parental Educational Background of Junior Secondary School Students’ Achievement in Selected Concepts in Basic Science”. International Journal of Social Sciences & Humanities (IJSSH) 1 (1):29-39. https://doi.org/10.58885/ijssh.v1i1.29.ao.