Promnuchanont, T., T. Saengsri, R. Kosarat, and P. Yuenyongsathaworn. “Time Series-Based Predictive Modeling of PM2.5 Levels in Chiang Mai, Thailand”. RMUTL Engineering Journal, vol. 10, no. 2, Dec. 2025, pp. 22-33, doi:10.14456/rmutlengj.2025.11.