“The Effect of Unsaturated Polyester Resin from Recycled PET As Compatibilizer for Styrene-Butadiene (SBR) Acrylonitrile-Butadiene (NBR) Rubber Blend: Effect of UPR on Rubber Blends”. 2009. Biological Sciences - PJSIR 52 (6): 341-46. https://www.v2.pjsir.org/index.php/biological-sciences/article/view/582.