“Study Tensile Strength and Wear Rate for Unsaturated Polyester Resin and Nitrile Butadiene Rubber Polymer Blend”.
Al-Khwarizmi Engineering Journal, vol. 11, no. 2, Mar. 2015, pp. 45-50,
https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/223.