MARÍN ÁLVAREZ, E. C.; VÁZQUEZ BERNAL, B.; DE LAS HERAS PÉREZ , M. Ángeles. Pedagogical content knowledge in natural science teachers A perspective from emotional stress and professionalization. Maskana, [S. l.], v. 15, n. 2, p. 93–109, 2024. DOI: 10.18537/mskn.15.02.06. Disponível em: https://publicaciones.ucuenca.edu.ec/ojs/index.php/maskana/article/view/5482. Acesso em: 27 nov. 2025.