Abdul Rahim, Luqmanulhakim, Mohmadisa Hashim, Mohamad Suhaily Yusri Che Ngah, Nasir Nayan, and Yazid Saleh. “Kualiti Air Tirisan: Kajian Kes Di Ulu Yam Dan Kuala Kubu Bharu, Selangor: Seepage Water Quality: A Case Study in Ulu Yam and Kuala Kubu Bharu, Selangor”. GEOGRAFI 2, no. 1 (December 27, 2018): 86–97. Accessed May 2, 2024. https://ojs.upsi.edu.my/index.php/GEOG/article/view/470.