PURBA, Ines Adewinda; SURJASA, Dadang; SAFITRI, Dian Mardi. The influence of service quality on customer satisfaction in maintaining loyalty at Coco SPBU in Medan City. Operations Excellence: Journal of Applied Industrial Engineering, Jakarta, Indonesia, v. 16, n. 2, p. 123–134, 2024. DOI: 10.22441/oe.2024.v16.i2.115. Disponível em: https://publikasi.mercubuana.ac.id/index.php/oe/article/view/28306. Acesso em: 3 jun. 2026.