Muhammad Abbas S. H. Yahaya Ena Jamal Ahmad Abdul Majid Jamaludin Md. Ali Spur Gear Tooth Design and Transition Curve as a Spiral Using Cubic Trigonometric Bezier Function. 76-81 2011 CGIV http://doi.ieeecomputersociety.org/10.1109/CGIV.2011.38 conf/IEEEcgiv/2011 db/conf/IEEEcgiv/cgiv2011.html#AbbasYJMA11