Raj, Ram Gopal, and S. Abdul-Kareem. “A Pattern Based Approach for the Derivation of Base Forms of Verbs from Participles and Tenses for Flexible NLP”. Malaysian Journal of Computer Science 24, no. 2 (March 1, 2011): 63–72. Accessed December 23, 2024. https://ijps.um.edu.my/index.php/MJCS/article/view/6542.