Pardede M, Gaffar V, Monoarfa H. Study of The Factors That Influence Brand Loyalty Simpati Cards PT. Telkomsel Tbk. WSSHS [Internet]. 2024 Jul. 26 [cited 2024 Sep. 28];2(07):1087-91. Available from: https://wsj.westscience-press.com/index.php/wsshs/article/view/952