Chayapathi A R, G Sunilkumar, Manjunathswamy B E, Thriveni J, Venugopal KR. “NLPbased Stemming and Lemmatization Approaches for Multilingual Search Indexing”. International Journal of Advanced Science and Technology, Vol. 29, no. 06, Apr. 2020, pp. 9121 -34, https://sersc.org/journals/index.php/IJAST/article/view/32454.