Nadiya Garnis Sallyfan, Endro Yulianto, and Torib Hamzah. “Peak Flow Meter Equipped With Inspection Results Indicator”. Journal of Electronics, Electromedical Engineering, and Medical Informatics 2, no. 1 (January 6, 2020): 7-12. Accessed February 4, 2026. https://mail.jeeemi.org/index.php/jeeemi/article/view/66.