Morsid, N. A. (2012). Easing students' learning difficulties in straight lines using geometer's sketchpad.
芝加哥风格引文Morsid, Nurrul A'iin. Easing Students' Learning Difficulties in Straight Lines Using Geometer's Sketchpad. 2012.
MLA引文Morsid, Nurrul A'iin. Easing Students' Learning Difficulties in Straight Lines Using Geometer's Sketchpad. 2012.
警告：这些引文格式不一定是100％准确.