Bolortsetseg, Idertsog Boogii, and Hsio-Min Wang. “A Study on User”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 24, no. 6 (December 1, 2015): 433–449. Accessed July 3, 2024. https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/4923.