Alwitri, Y., Putri, L. T., & Diantara, L. (2020). ANALYSIS OF THE EFFECT OF PROMOTION THROUGHT SOCIAL NETWORKS ON SALES AT KLINIK SELERA IN BANGKINANG CITY. Jurnal Riset Manajemen Indonesia, 2(4). https://doi.org/10.55768/jrmi.v2i4.43