MOORE, George A. B. The Development of VITAL: A Microcomputer-Based Videotex Teaching and Learning System for Education. Canadian Journal of Learning and Technology, [S. l.], v. 15, n. 2, 2009. DOI: 10.21432/T2QK71. Disponível em: https://cjlt.ca/index.php/cjlt/article/view/26882. Acesso em: 23 apr. 2026.