“Acoustical Properties of (Chitin Nano-TiO2) Bio ‎Polymer Composite Gel”. JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences 25, no. 5 (November 30, 2017): 1762–1766. Accessed May 4, 2025. https://www.journalofbabylon.com/index.php/JUBPAS/article/view/267.