Fetra, V. R. (2010). A study on the potential of polystyrene lightweight aggregate in concrete. Universiti Malaysia Perlis.
استشهاد بنمط شيكاغوFetra, Venny Riza. A Study On the Potential of Polystyrene Lightweight Aggregate in Concrete. Universiti Malaysia Perlis, 2010.
MLA استشهادFetra, Venny Riza. A Study On the Potential of Polystyrene Lightweight Aggregate in Concrete. Universiti Malaysia Perlis, 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.