Saengiet, B, F Unob, and K Srikulkit. 2014. “Effect of Styrene-Methyl methacrylate/Styrene-Butadiene Rubber on Properties of poly(vinyl Chloride)”. Journal of Metals, Materials and Minerals 24 (2). Bangkok, Thailand. http://jmmm.material.chula.ac.th/index.php/jmmm/article/view/116.