Nur Zahirah Zulhaimi and KuZilati KuShaari and Zakaria Man, Characterization of Chemically Modified Biomass as a Coating Material for Controlled Released Urea by Contact Angle Measurement. journal = {International Journal of Chemical and Materials Engineering}, [online]. World Academy of Science, Engineering and Technology. October 2011, vol. 58(10). 876 - 880 [viewed 20 September 2024]. Available from: https://publications.waset.org/pdf/2653.