Abdullah, A. H. (2008). The use of Interactive Geometry Software (IGS) to develop geometric thinking. Penerbit UTM Press.
استشهاد بنمط شيكاغوAbdullah, Abdul Halim. The Use of Interactive Geometry Software (IGS) to Develop Geometric Thinking. Penerbit UTM Press, 2008.
MLA استشهادAbdullah, Abdul Halim. The Use of Interactive Geometry Software (IGS) to Develop Geometric Thinking. Penerbit UTM Press, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.