M. A. . Arifin, . M. Mel, N. . Samsudin, Y. Z. H.-Y. . Hashim, H. M. Salleh, and . I. . Sopyan, “Different Oxidation Treatments on Polystyrene (PS) Microspheres by using an Ultraviolet/Ozone (UVO3) System: Different Oxidation Treatments on Polystyrene (PS)”, PPASB, vol. 54, no. 1, pp. 59–64, Mar. 2017.