Yulanda, Nur Khabiba, and Christian Herdinata. “Analysis of the Attributes That Affect the Preference of Consumers Towards Hajj and Umrah Offline Store in Bontang City”. KnE Social Sciences 5, no. 5 (March 22, 2021): 378–387. Accessed October 23, 2021. https://knepublishing.com/index.php/KnE-Social/article/view/8824.