M. Obaidullah, J. De Ruyck. PM concentrations and particle size distributions in urban areas and their health effects. Maejo Int. J. Energ. Environ. Comm. or MIJEEC [internet]. 2024 Aug. 24 [cited 2026 Oct. 12];6(2):60-9. available from: https://ph02.tci-thaijo.org/index.php/MIJEEC/article/view/256798