Rashid, A.-K. J. and Kadem, B. Y. (2011) “Effect of Variable Ultrasonic Frequencies on some Physical Properties of Iraqi Palm Fiber PVA Composite”, Journal of Asian Scientific Research, 1(7), pp. 359–365. Available at: https://archive.aessweb.com/index.php/5003/article/view/3307 (Accessed: 3 July 2024).