Loh, W. P., and Y. Y. Chong. “Classifying the Archery Performance With Conditional Effects on Angular and Linear Shooting Techniques”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), vol. 10, no. 3-2, Sept. 2018, pp. 95-99, https://jtec.utem.edu.my/jtec/article/view/4718.