Mahmudah, Isna, Naufali Rizkiawan, Husin Thamrin, Brian Eka Rahman, Hasan Maulahela, Yudith Annisa Ayu Rezkitha, Yoshio Yamaoka, and Muhammad Miftahussurur. “Exhaled Breath Analysis for COVID-19 Investigation: Clinical Instruments or Scientific Toys?”. ABDIMAS: Jurnal Pengabdian Masyarakat 6, no. 1 (January 31, 2023): 3118–3133. Accessed September 9, 2024. https://journal.umtas.ac.id/index.php/ABDIMAS/article/view/2910.