Alava JBC, Vera LEA, Tipán VF, Pinargote GVL. Problem-based learning as a methodological strategy in the teaching-learning process. ijssh [Internet]. 2021 Dec. 6 [cited 2024 Jul. 17];5(3):232-4. Available from: https://sciencescholar.us/journal/index.php/ijssh/article/view/2028