Cheng Yang, L., B. Selvaretnam, P. Kuan Hoong, I. K. T. Tan, E. Kok Howg, and L. Heng Kar. “Exploration of Road Traffic Tweets for Congestion Monitoring”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), vol. 8, no. 2, May 2016, pp. 141-5, https://jtec.utem.edu.my/jtec/article/view/973.