Tran, Tuan. “Unregistered Trademarks Also Need Legal Protection: An Approach from the U.S. Law”. VNUHCM Journal of Economics, Business and Law 1, no. Q5 (November 28, 2018): 69-73. Accessed April 7, 2026. https://ebl.vnuhcmjournal.com.vn/index.php/ebl/article/view/492.