Jearanaitanakij, K., K. Iamthammarak, and N. Wangcharoen. “Fast Classifying Non-Helmeted Motorcyclists by Using Convolutional Neural Networks”. Creative Science, vol. 13, no. 1, Dec. 2020, pp. 1-10, https://ph01.tci-thaijo.org/index.php/snru_journal/article/view/242823.