TIRTAYASA, Satria. Effect Of Product Quality And Service On Customer Loyalty With Customer Satisfaction As An Intervening Variable (Study On Coffee Shop In Medan). International Journal of Science, Technology & Management, [S. l.], v. 3, n. 5, p. 1438–1444, 2022. DOI: 10.46729/ijstm.v3i5.633. Disponível em: https://ijstm.inarah.co.id/index.php/ijstm/article/view/633. Acesso em: 12 feb. 2026.