Winata, Sharleen, et al. “Development and Validation of a ‘Pelita Harapan’ Questionnaire Assessing Knowledge, Attitude, and Practice Toward Coronavirus Disease 2019 Among Young People in Indonesia”. Medicinus, vol. 10, no. 2, June 2021, pp. 117-30, doi:10.19166/med.v8i3.3769.