Nguyễn, Thế Thắng, and Phương Thảo Vũ Thị. “THE ISSUE OF INFORMAL LABOR – EXPERIENCE IN SOME COUNTRIES”. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY 7, no. 23 (December 8, 2021). Accessed April 27, 2024. https://tckh.daihoctantrao.edu.vn/index.php/sjttu/article/view/588.