Nguyen, Tuong Huy, and Thi Thu Thao Nguyen. “International Labor Migration: Employment, Costs and Income of Export Labors in Yen Khe Commune, Thanh Ba District, Phu Tho Province, Vietnam”. International Journal of Social Sciences and Humanities Invention 6, no. 11 (November 30, 2019): 5731–5738. Accessed March 29, 2024. https://valleyinternational.net/index.php/theijsshi/article/view/2438.