Water Quality Assessment Using Activated Carbon from Cocoshells in Lake Mainit, Philippines. Am. J. Agric. Sci. Eng. Technol. [Internet]. 2023 Apr. 25 [cited 2026 Aug. 2];7(2):21-9. Available from: https://www.e-pallipublishers.com/index.php/ajaset/article/view/1404