Kristiyuana, Lukman Hakim, Shinta Yuliana, dan Muhammad Habibbullah. 2026. “Pelayanan Humanis Muthawif Dan Tour Leader Terhadap Loyalitas Jamaah Umrah Dan Word of Mouth Di PT Surya Madina”. Bayani 6 (1):24-35. https://doi.org/10.52496/bayaniV.6I.1pp24-35.