Davinder Singh Rathee. “Smart Hand Washing Machine for Community Service During the COVID-19 Pandemic: A Cost Effective Approach for Robust Hand Hygiene ”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 13 (June 4, 2021): 446–451. Accessed October 13, 2025. https://www.turcomat.org/index.php/turkbilmat/article/view/8314.