Evaluation and assessment of aquatic ecosystem status using aquatic plant species as key tolls indicator - Othman, Rashidi; Shaharuddin, Ruhul Izzati; Mohd Hatta, Farah Ayuni; Tukiman, Izawati; Hj. Baharuddin, Zainul Mukrim; Mohd. Hussain, Mohd. Ramzi (2013)