Que, V. K. S., A. Iriani, and H. D. Purnomo. “Online Transportation Sentiment Analysis Using Support Vector Machine Based on Particle Swarm Optimization”. Jurnal Nasional Teknik Elektro Dan Teknologi Informasi, Vol. 9, no. 2, May 2020, pp. 162-70, doi:10.22146/jnteti.v9i2.102.