The Influences of Services and Promotion Quality to the Consumer Loyalty in The Group of Pilgrimage Guidance KBIH At-Taqwa Bekasi. SMART : Management Journal, [S. l.], v. 2, n. 1, p. 10–27, 2021. DOI: 10.53990/smart.v2i1.257. Disponível em: https://ojs.umbk.ac.id/index.php/smart/article/view/257. Acesso em: 3 apr. 2026.