Khairul Anuar AA, Ts. Dr. Mohd Ariff bin Ahmad Nazri. Treatment of Heavy Metals in Groundwater by The Carbonization of Lemon Peels and Coconut Shells. rtcebe [Internet]. 2022 Jul. 17 [cited 2026 Aug. 15];3(1):1532-8. Available from: https://periodical.uthm.edu.my/index.php/rtcebe/article/view/2907