G. Krishna Chaitanya, D. Reddy Meka, V. Surya Vamsi, and M. V S Ravi Karthik, “A Survey on Twitter Sentimental Analysis with Machine Learning Techniques”, IJET, vol. 7, no. 2.32, pp. 462–465, May 2018, doi: 10.14419/ijet.v7i2.32.16268.