Thanh Van Thai, Huong Thi Nguyen, Nhi Thi Nguyen, and Vinh Van Le. “THE OPINION OF LECTURERS IN UNIVERSITIES ON ONLINE LEARNING IN THE CONTEXT OF THE COVID 19 PANDEMIC: A CASE STUDY IN VIETNAM”. PalArch’s Journal of Archaeology of Egypt / Egyptology, vol. 18, no. 09, Aug. 2021, pp. 1515-2, https://archives.palarch.nl/index.php/jae/article/view/9804.