Achmad, B. F. ., A. S. . Fitriawan, D. . Kurniawan, R. F. Kafil, L. N. Retnaningsih, and W. A. W. Setyaningsih. “Perceived Barriers in Online Learning Among Nursing Students During the COVID-19 Pandemic in Indonesia”. Open Access Macedonian Journal of Medical Sciences, vol. 9, no. G, Oct. 2021, pp. 203-10, doi:10.3889/oamjms.2021.7183.