GUMI, Akram; SARI, Astri Yuza. Customer engagement effect on relationship quality through customer co-creation. Marketing Management Studies, [S. l.], v. 2, n. 4, p. 378–388, 2022. DOI: 10.24036/mms.v2i4.324. Disponível em: https://jkmp.ppj.unp.ac.id/index.php/mms/article/view/324. Acesso em: 6 may. 2026.