Asmat, Arnis, Siti Norhayati Mohamad Tarmizi, and Nur Hidayah Zakaria. “Seasonal Particulate Matter (PM10) Concentration in Klang Valley, Malaysia”. International Journal of Engineering and Technology 7, no. 3.11 (July 21, 2018): 162–167. Accessed February 21, 2026. https://www.sciencepubco.com/index.php/IJET/article/view/15953.