Alwit, P. Y., et al. “Chest and Head Registers in Carnatic Singers and Non-Singers Using Linear Predictive Coding (LPC): A Comparative Study”. International Journal of Research in Engineering, Science and Management, vol. 3, no. 8, Aug. 2020, pp. 1-7, https://journal.ijresm.com/index.php/ijresm/article/view/111.