SPROCK, A. S. .; GALLEGOS, J. C. P.; CALDERÓN, M. D. V. . Development Model of Learning Objects Based on the Instructional Techniques Recommendation. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 4, n. 1, p. 27–35, 2014. Disponível em: http://ijlter.myres.net/index.php/ijlter/article/view/1196. Acesso em: 8 jun. 2026.