Nethravathi, B., G. Amitha, A. Saruka, T. P. Bharath, and S. Suyagya. “Structuring Natural Language to Query Language: A Review”. Engineering, Technology & Applied Science Research 10, no. 6 (December 20, 2020): 6521–6525. Accessed January 25, 2022. https://www.etasr.com/index.php/ETASR/article/view/3873.