Awang, M. , Hor, W. , Mohammadpour, E. , Abdullah, M. , Ahmad, F.. "Functionalization and Characterization of Carbon Nanotubes/ Polypropylene Nanocomposite". World Academy of Science, Engineering and Technology, Open Science Index 58, International Journal of Materials and Metallurgical Engineering, (2011), 5(10), 871 - 875.