Siddiqui, M. A., S. A. Ali, and N. G. Haider. “Reduced Feature Set for Emotion Based Spoken Utterances of Normal and Special Children Using Multivariate Analysis and Decision Trees”. Engineering, Technology & Applied Science Research 8, no. 4 (August 18, 2018): 3228–3233. Accessed December 6, 2022. https://www.etasr.com/index.php/ETASR/article/view/2177.