WASET
    Mbala Mukenga and  Edison Muzenda and  Kalala Jalama and  Reinout Meijboom,  Biodiesel Production from Soybean Oil over TiO2 Supported nano-ZnO.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2012, vol. 64(4). 348 - 352
    [viewed 18 April 2024]. Available from: https://publications.waset.org/pdf/1567.