S. O, A.; SAMUEL AKINOLA, O. 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), [S. l.], v. 1, n. 1, p. 29–39, 2016. DOI: 10.58885/ijssh.v1i1.29.ao. Disponível em: https://ijssh.ielas.org/index.php/ijssh/article/view/3. Acesso em: 16 apr. 2026.