Mohammed أحمد جاسم. “Calculation of Linear Attenuation Coefficient and Path Rate of X-Ray for Low Density Polyethylene Reinforced With Walnut Shells Powder”. University of Aden Journal of Natural and Applied Sciences 23, no. 2 (October 31, 2019): 343–353. Accessed April 3, 2025. https://uajnas.adenuniv.com/index.php/uajnas/article/view/33.