Abdalla Milad Faraj, Musbah Al-Mahdi Al-Jadi, and Ahmed Saed Ishleebtah. 2025. “Water Pressure Switch Design Using 555 Timer”. African Journal of Advanced Pure and Applied Sciences (AJAPAS) 4 (1):70-77. https://aaasjournals.com/index.php/ajapas/article/view/1089.