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