Dyson, N. G., V. J. Dirjayanto, A. Fakhri, and S. A. Prayogo. “Effectiveness of Digital Handwashing Intervention As a Breakthrough to Control COVID-19 and Transmissible Disease Outbreaks: A Meta-Analysis of Clinical Trials”. Journal of Asian Medical Students’ Association, Feb. 2022, https://jamsa.amsa-international.org/index.php/main/article/view/385.