Nur Aqilah, S., & Najib, N. W. A. Z. (2013). Effect of human activity on water quality of Perlis River. Universiti Malaysia Perlis (UniMAP).
استشهاد بنمط شيكاغوNur Aqilah, Sapiee, and Nur Wahidatul Azura Zainon Najib. Effect of Human Activity On Water Quality of Perlis River. Universiti Malaysia Perlis (UniMAP), 2013.
MLA استشهادNur Aqilah, Sapiee, and Nur Wahidatul Azura Zainon Najib. Effect of Human Activity On Water Quality of Perlis River. Universiti Malaysia Perlis (UniMAP), 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.