Maharani, A. and Isra Hayati 2024. The Effectiveness Of The Sharia-Based Transaction Payment System In Increasing The Trust Of Pilgrims In The Umrah Travel Service Of Pt. Zam Zam Islamic Tourism. Al Tijarah. 10, 2 (Jun. 2024), 130–140. DOI:https://doi.org/10.21111/at.v10i2.14205.