C., Festus,; EKPETE, O. A. Improving Students’ Performance and Attitude towards Chemistry through Problem-Based-Solving Techniques (PBST). International Journal of Academic Research in Progressive Education and Development, [S. l.], v. 1, n. 1, 2012. Disponível em: https://ijarped.com/index.php/journal/article/view/16. Acesso em: 2 aug. 2025.