Dirgawati , M., and M. R. . Sururi. “Characteristics of Dissolved Organic Matter and Trihalomethane Forming Potential Occurrence in Watersheds With Different Upstream Land Use: 10.32526/Ennrj/21/202200179”. Environment and Natural Resources Journal, vol. 21, no. 2, Feb. 2023, pp. 140-52, https://ph02.tci-thaijo.org/index.php/ennrj/article/view/248499.