S. Khandaker, M. M. Hasan, N. Shaipuzaman, M. A. S. M. Aspar, and H. Manap, “Development of DOAS System for Hazardous Methane Detection in the Near-Infrared Region ”, EMITTER Int’l J. of Engin. Technol., vol. 12, no. 2, pp. 182-195, Jan. 2025.