Asnawi, R. A., E. R. Tamher, and M. Pelupessy. “THE EFFECT OF PRODUCT KNOWLEDGE AND SOCIAL MEDIA MARKETING ON THE BRAND SWITCHING OF FAST MOVING CONSUMERS GOODS PRODUCTS DURING THE COVID 19 PANDEMIC”. Manis: Jurnal Manajemen Dan Bisnis, Vol. 4, no. 2, Jan. 2021, pp. 37-46, doi:10.30598/manis.4.2.37-46.