[1]
Alava, J.B.C., Vera, L.E.A., Tipán, V.F. and Pinargote, G.V.L. 2021. Problem-based learning as a methodological strategy in the teaching-learning process. International journal of social sciences and humanities. 5, 3 (Dec. 2021), 232–242. DOI:https://doi.org/10.53730/ijssh.v5n3.2028.