SUSANTO, S. P.; ANDRONICUS, M. The Influence of Service Quality, Product Quality, and Promotion on Purchase Decision at PT. Unikitz Bersatu Group Medan Branch. Jurnal Mantik, [S. l.], v. 5, n. 2, p. 946-952, 2021. DOI: 10.35335/jurnalmantik.Vol5.2021.1424.pp946-952. Disponível em: https://iocscience.org/ejournal/index.php/mantik/article/view/1424. Acesso em: 22 aug. 2026.