Cici Elenda et al. 2024. Effectiveness of Angsana (Pterocarpus indicus) and Mahogany (Swietenia mahagoni) Plants in the Sorption of Lead (Pb) and Particulates on Sudirman Road, Pekanbaru, Riau, Indonesia. Engineering And Technology Journal. 9, 8 (Aug. 2024), 4652–4656. DOI:https://doi.org/10.47191/etj/v9i08.05.