YALOF, Barbara. Marshaling Resources:: A Classic Grounded Theory Study of Online Learners. Grounded Theory Review, [S. l.], v. 13, n. 01, p. 16–28, 2014. Disponível em: https://groundedtheoryreview.org/index.php/gtr/article/view/181. Acesso em: 8 jun. 2025.