W. Ballo, F., Tiwu, M., & C. Nope, D. (2022). IMPACT COVID 19 PANDEMIC ON THE 4.0 SERVICE INDUSTRY (CASE STUDY ONLINE TRANSPORTATION GRAB IN KUPANG CITY). JMM17 : Jurnal Ilmu Ekonomi Dan Manajemen, 9(01), 94-104. https://doi.org/10.30996/jmm17.v9i01.6447