Effects of Product Quality and Promotion on Purchase Decision: A Case Study of The Lanang Suhang Soluble Coffee In Lahat Regency. International Journal of Scientific Research and Management (IJSRM), [S. l.], v. 9, n. 12, p. 2765–2775, 2021. DOI: 10.18535/ijsrm/v9i12.em6. Disponível em: https://ijsrm.net/index.php/ijsrm/article/view/3600.. Acesso em: 22 jul. 2024.