LIU, Xiaojing; BONK, Curt J.; MAGJUKA, Richard J.; LEE, Seung-hee; SU, Bude. EXPLORING FOUR DIMENSIONS OF ONLINE INSTRUCTOR ROLES: A PROGRAM LEVEL CASE STUDY. Online Learning, Boston, MA, v. 9, n. 4, 2019. DOI: 10.24059/olj.v9i4.1777. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/1777. Acesso em: 25 mar. 2026.