RAMADHANI, Novita Puspa; WALUYO, Minto. Analysis of the Influence of Product Quality, Service Quality, and Sales Promotion on Purchasing Decisions and Consumer Loyalty (A Case Study on Dunkin’ Indonesia Consumers). IJIEM - Indonesian Journal of Industrial Engineering and Management, Jakarta, Indonesia, v. 5, n. 1, p. 9–21, 2024. DOI: 10.22441/ijiem.v5i1.21662. Disponível em: https://training-ojs3-publikasi.mercubuana.ac.id/index.php/ijiem/article/view/21662. Acesso em: 28 may. 2026.