Jauhir, Hafizan, Sharifuddin Zain, Zainol Mustafa, and Azme Khamis. “Ramalan Kepekatan Oksigen Terlarut Menggunakan Analisis Siri Masa Di Sungai Langat, Hulu Langat Selangor”. MATEMATIKA 17 (December 1, 2001): 77–87. Accessed November 25, 2024. https://matematika.utm.my/index.php/matematika/article/view/108.