KHOIRIYAH, S.; RINI, H. P. Strategi Customer Service Excellence Pada Customer Service B21 Digital Printing Gresik. Mestaka: Jurnal Pengabdian Kepada Masyarakat, [S. l.], v. 3, n. 1, p. 76–80, 2024. DOI: 10.58184/mestaka.v3i1.272. Disponível em: https://pakisjournal.com/index.php/mestaka/article/view/272. Acesso em: 25 may. 2026.