MUBANDARI, G. P.; HARTINI, S. VALUE PROPOSITION ANALYSIS TELKOMSEL LOOP CARD PRODUCTS. Jurnal Ekonomi, [S. l.], v. 12, n. 02, p. 1036–1040, 2023. Disponível em: https://ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/1839. Acesso em: 5 dec. 2024.