BREIT, Emily; SCHREYER, Samuel. The Impact of Distance Education on University Retention Rates. International Journal for Innovation Education and Research, Dhaka, Bangladesh, v. 6, n. 11, p. 48–62, 2018. DOI: 10.31686/ijier.vol6.iss11.1228. Disponível em: https://scholarsjournal.net/index.php/ijier/article/view/1228.. Acesso em: 6 apr. 2025.