Nguyen, Thu Nguyet Minh, Van Dong Tra, and Phuong Hac Nguyen. 2021. “Difficulties and Some Suggested Solutions in Studying Online of the Students in Van Lang University During the Covid-19 Pandemic”. AsiaCALL Online Journal 12 (4):9-17. https://asiacall.info/acoj/index.php/journal/article/view/58.