Mulyawan H, . R, . H, . S, Gistituati N. Enhancing Quality Culture through an Integrated Quality Management Model for Hajj and Umrah Guidance Centers in Padang City. jcasc [Internet]. 2025 Dec. 4 [cited 2026 Jul. 28];10(3):2595-608. Available from: https://jcasc.com/index.php/jcasc/article/view/2812