Ab Latif FNB, Yaacob M. Detection of Methane Gas Using Absorption Spectroscopy Technique in Non-Dispersive Infrared (NDIR) Region. EEEE [Internet]. 2022 Nov. 14 [cited 2024 May 18];3(2). Available from: https://publisher.uthm.edu.my/periodicals/index.php/eeee/article/view/6946