SAFITRI, A.; YULIANA, N. .; ALFIAN, A.; TARADIPA, E. .; ARYANI, A. S. . The Effectiveness of Online Learning: The Implementation of Hand Hygiene as a COVID-19 Prevention of the Cognitive and Affective Capabilities of Nursing Students. Indonesian Journal of STEM Education, v. 2, n. 1, p. 19-26, 22 May 2020.