Wardhani, A. ., & Pertiwi, M. R. . (2021). Relationship Knowledge about Covid-19 with Hand Washing Habits in Indrasari Village Martapura District Banjar Regency South Kalimantan Province in 2021. D’Nursing and Health Journal (DNHJ), 2(2), 122–128. https://doi.org/10.61595/dnursing.v2i2.204