J., A. C. N.; ANULIKA, E. J. Effect of Problem-Solving Instructional Technique on Secondary School Students’ Achievement in Chemistry in Anambra State, Nigeria. The International Journal of Humanities & Social Studies, [S. l.], v. 8, n. 6, 2020. DOI: 10.24940/theijhss/2020/v8/i6/HS2006-125. Disponível em: http://www.internationaljournalcorner.com/index.php/theijhss/article/view/153827. Acesso em: 17 may. 2024.