Darussyamsu, R., Yuniarti, E., Ardi, A. and Selaras, G. (2021) “Reinforcement Knowledge for Ulama in Padang City to Anticipate Hoax about Covid-19 Vaccination”, Pelita Eksakta, 4(2), pp. 129-133. doi: 10.24036/pelitaeksakta/vol4-iss2/155.