Shishira S.Bharadwaj, Sushma S., and Sreedevi N. “Speech Intelligibility in (3-4 Years Old) Typically Developing Children”. Journal of All India Institute of Speech and Hearing, Vol. 29, no. 1, 1, pp. 81-86, http://203.129.241.91/jaiish/index.php/aiish/article/view/1010.