Lam, N. M. M. “Outbound Mobility and Transnational Education Linked to Ho Chi Minh City (2002–2025): A Bibliometric and Policy Analysis”. International Journal of Learning, Teaching and Educational Research, vol. 25, no. 4, Apr. 2026, pp. 652-7, https://www.ijlter.myres.net/index.php/ijlter/article/view/2820.