Wardhani, A. ., and M. R. . Pertiwi. “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), vol. 2, no. 2, Sept. 2021, pp. 122-8, doi:10.61595/dnursing.v2i2.204.