Azzahra, Nabilla Farikha, Priyambada Cahya Nugraha, Torib Hamzah, and Kamilu O. Lawal. “Implementation of a Microcontroller Arduino for Portable Peak Expiratory Flow Rate to Examine the Lung Health”. International Journal of Advanced Health Science and Technology 2, no. 2 (March 26, 2022): 54–59. Accessed August 19, 2022. https://ijahst.org/index.php/ijahst/article/view/29.