Domínguez, Lilian, and Sunny Perozo. “The Training of the Teachers of Natural Sciences of the Educational Institutions of the Department of Nariño Colombia”. Impacto Científico 17, no. 2 (December 2, 2022): 227-249. Accessed December 5, 2025. https://produccioncientificaluz.org/index.php/impacto/article/view/39237.