SHITH, Syabiha. Multivariate Analysis on Trace Elements of Fine Particulate Matter (PM2.5) in Industrial and Sub-Urban Area. International Journal of Integrated Engineering, [S. l.], v. 11, n. 2, 2019. Disponível em: https://journal.uthm.edu.my/index.php/ijie/article/view/4119. Acesso em: 7 aug. 2026.