Pérez González, Luis G., and Meriele Cogollo López. “Virtual Learning Objects As Support Tool To The Ie ‘José Maria Berástegui’s’ Secondary Teachers”. Ingeniería Solidaria 5, no. 9 (January 15, 2010): 54–67. Accessed July 22, 2024. https://revistas.ucc.edu.co/index.php/in/article/view/466.