Purnama, H. 2022. Efektifitas Manajemen Pelayanan Jamaah Haji dan Umroh PT. Dallas Travel Sukabumi. Jurnal Multidisiplin West Science. 1, 01 (Nov 2022), 57–64. DOI:https://doi.org/10.58812/jmws.v1i01.1173.