Ramaiya, I. and Nurmiza Othman (2023) “Development of Smart Spirometer System for at-Home Post Covid-19 Patients ”, Evolution in Electrical and Electronic Engineering, 4(1), pp. 389–397. Available at: https://periodical.uthm.edu.my/index.php/eeee/article/view/10826 (Accessed: 15 August 2026).