Nurbayani, Nurbayani, and Muliana Muliana. 2021. “Islamic Business Ethics Implementation Towards Sustainibility Of The Hajj And Umrah Business Travel Agency Of Makassar City”. LAA MAISYIR : Jurnal Ekonomi Islam 8 (1), 13-27. https://doi.org/10.24252/lamaisyir.v8i1.17575.