Hoang Trung, Nguyen. “TRANSLATIONS OF IMPARFAIT IN VIETNAMESE LANGUAGE”. VNUHCM Journal of Science and Technology Development 3, no. 3 (March 31, 2000): 44-52. Accessed May 11, 2025. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/3544.