Obaidellah, U., Z. Azizul, and E. R. Mohd Faizal. “Craniofacial Tissue Simulation Using Contact Analysis Of The Finite Element Method”. Malaysian Journal of Computer Science, vol. 27, no. 1, Mar. 2014, pp. 35-49, https://ejournal.um.edu.my/index.php/MJCS/article/view/6792.