Layli Rohmatillah and Zainur Ridho 2021. EFEKTIVITAS MANAJEMEN LAYANAN PRIMA IBADAH UMRAH PT. NUR HARAMAIN MULIA. HARAMAIN: Jurnal Manajemen Bisnis. 1, 01 (Jan. 2021), 53–61. DOI:https://doi.org/10.66931/jmb-78.