Dr. Pradeep Karanje, Udaytada Malle, Somshekar Patil, Srikanthha Milpurkar, and Omkar Surywanshi. 2026. “UPI-BASED SMART SANITARY NAPKIN VENDING MACHINE”. International Educational Journal of Science and Engineering 9 (05):25-28. https://doi.org/10.5281/zenodo.21370841.