Firdiansyah, R., Basneldi, B., Hermawan, I., Yuliasih, M. and Setiadi, B. (2020) “THE IMPACT OF COVID 19 ON THE UMRAH AND HAJJ BUSINESS PLUS IN EAST JAKARTA”, Dinasti International Journal of Management Science, 2(2), pp. 174–179. doi: 10.31933/dijms.v2i2.579.