Gressi, R., & Hassan, M. H. A. (2012). Characteristic of gross pollutants and evaluation of gross pollutant traps (GPTs) in Perlis. Universiti Malaysia Perlis (UniMAP).
استشهاد بنمط شيكاغوGressi, Rigum, and Md Hadli Abu Hassan. Characteristic of Gross Pollutants and Evaluation of Gross Pollutant Traps (GPTs) in Perlis. Universiti Malaysia Perlis (UniMAP), 2012.
MLA استشهادGressi, Rigum, and Md Hadli Abu Hassan. Characteristic of Gross Pollutants and Evaluation of Gross Pollutant Traps (GPTs) in Perlis. Universiti Malaysia Perlis (UniMAP), 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.