Afiqah S, N. et al. 2018. Waste Polymer Blended with Copolymer Polypropylene to Enhance Mechanical Properties Using Injection Moulding. International Journal of Engineering & Technology. 7, 3.28 (Aug. 2018), 252–257. DOI:https://doi.org/10.14419/ijet.v7i3.28.23431.