Sooktawee, S., Ketwang, R., Patpai, A. and Piemyai, N. 2022. A Study on Determining the Potential Source Area of PM2.5 Using Bivariate Polar Plot Technique on Short-Term Monitoring Data in Bhan Phi District, Khonkhen Province, Thailand. Journal of Applied Research on Science and Technology (JARST). 21, 2 (Oct. 2022), 66–78. DOI:https://doi.org/10.14456/jarst.2022.18.