e Sathit, Choe, Seyed Amirmostafa Jourabchi, Ng Hoon Kiat, and Gan Suyin. “Investigation on Transforming of a Fixed Gas Analyser into a Portable Emission Measurement System (PEMS)”. INTI Journal 2019 (November 20, 2019). Accessed December 4, 2024. https://iuojs.intimal.edu.my/index.php/intijournal/article/view/384.