Irfan Qutab, K. I. Malik, and Hira Arooj. “Sentiment Classification Using Multinomial Logistic Regression on Roman Urdu Text”. International Journal of Innovations in Science & Technology, vol. 4, no. 2, Apr. 2022, pp. 323-35, https://journal.50sea.com/index.php/IJIST/article/view/217.