Soleymani, Z., and N. Shakeri. “Phonological Awareness in Preschool Persian Speaking Children With Speech Sound Disorder: Impact of Comorbid Language Impairment”. Journal of Modern Rehabilitation, Vol. 11, no. 4, June 2018, pp. 237-44, http://jmr.tums.ac.ir/index.php/jmr/article/view/136.