Manzano, Carl, Jericho Micompal, Alejandro Paz, Jaspher Kyle Placeros, and John Chester Mangubat. 2024. “Smart Pneumatic Valve With Liquid Level Indicator via Software Application Controlled Using Arduino: Vol.4, No.1”. Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research 4 (1). https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/14014.