Trung Thanh, H., Quang Hung, N. and Duy Thanh, T. 2020. Applying topic model combined with Kohonen networks to discover and visualize communities on social networks. VNUHCM Journal of Economics, Law and Management. 3, 3 (Jan. 2020), 311-326. DOI:https://doi.org/https://doi.org/10.32508/stdjelm.v3i3.572.