IVANKOVA, N. V.; STICK, S. L. Distance Education Doctoral Students: Delineating Persistence Variables Through a Comprehensive Literature Review. Journal of College Orientation, Transition, and Retention, [S. l.], v. 10, n. 2, 2003. DOI: 10.24926/jcotr.v10i2.2567. Disponível em: https://pubs.lib.umn.edu/index.php/jcotr/article/view/2567. Acesso em: 23 jul. 2024.