Nguyễn, Hằng, and Thị Minh Trần. “The Poetics of Mournful Language in Ai Tư vãn by Princess Ngọc Hân”. Thang Long Journal of Science: Van Hien and Heritage, vol. 4, no. 1, July 2025, https://science.thanglong.edu.vn/index.php/volb/article/view/251.