YUSUF, Fauzan; PRADANA, Mahir. The Effect of Price and Quality on Customer Loyalty PT HM Sampoerna Tbk. Economics and Digital Business Review, [S. l.], v. 4, n. 2, p. 276–281, 2023. DOI: 10.37531/ecotal.v4i2.651. Disponível em: https://ojs.stieamkop.ac.id/index.php/ecotal/article/view/651. Acesso em: 5 apr. 2026.