PHIPPS, Ronald A. Quality Assurance for Distance Learning in a Global Society. International Higher Education, [S. l.], n. 13, 1998. DOI: 10.6017/ihe.1998.13.6454. Disponível em: https://ejournals.bc.edu/index.php/ihe/article/view/6454. Acesso em: 3 may. 2024.