Achwarin N, Brahmakasikara LM, Cleesuntorn A. INVESTIGATING VIRTUAL INSTRUCTOR ROLES AND ONLINE TEACHING EXPERIENCE: A PROGRAM LEVEL CASE STUDY. JIR [Internet]. 2017Jul.1 [cited 2025May25];2(2). Available from: https://assumptionjournal.au.edu/index.php/eJIR/article/view/4236