Yusuf Z, Hazzeman, Md Sash AS, Obinna G. Environmental assessment of Sungai Perai, Penang, by using zooplankton as a bio-indicator. JBS [Internet]. 2025 Mar. 15 [cited 2026 May 1];8(1):48-66. Available from: https://onlinejbs.com/index.php/jbs/article/view/13545