A. Muhamad, A. T. Abd. Karim, N. F. Zakaria, and K. Jonya Ak Rapok, “DETERMINATION OF PHTHALATE ESTER COMPOUNDS IN SEMBRONG RIVER SEDIMENT”, jts, vol. 8, no. 2, Dec. 2016, Accessed: Jul. 18, 2024. [Online]. Available: https://publisher.uthm.edu.my/ojs/index.php/JTS/article/view/1517