Hoang, T., T. Dinh, D. Nguyen, and N. Bui. “Impacts of the Participation in Multi-Level Marketing Business Model on the Student Life of Viet Nam National University Ho Chi Minh City”. Science & Technology Development Journal - Social Sciences & Humanities, Vol. 2, no. 4, July 2019, pp. 34-41, doi:https://doi.org/10.32508/stdjssh.v2i4.502.