SIDDIQUI, M. A.; ALI, S. A.; HAIDER, N. G. Reduced Feature Set for Emotion Based Spoken Utterances of Normal and Special Children Using Multivariate Analysis and Decision Trees. Engineering, Technology & Applied Science Research, Greece, v. 8, n. 4, p. 3228–3233, 2018. DOI: 10.48084/etasr.2177. Disponível em: https://www.etasr.com/index.php/ETASR/article/view/2177. Acesso em: 16 may. 2022.