Raza, Col Syed Nusrat, Tahir Manzoor, Waqar Khan, Z. M. Rahat, Nadeem Uddin Naqvi, Qazi Ahsan, Asim Abbas, and Asad Shabbir. 2010. “COMPARISON OF LOCALLY MADE PHONATING DEVICE VERSUS OESOPHAGEAL SPEECH IN POSTLARYNGECTOMY SPEECH REHABILITATION: Locally Made Phonating Device for Speech Rehabilitation”. Pakistan Armed Forces Medical Journal 60 (2): 241-6. https://www.pafmj.org/PAFMJ/article/view/798.