WASET
    Ella C. Linganiso and  Bonex W. Mwakikunga and  Trilock Singh and  Sanjay Mathur and  Odireleng M. Ntwaeaborwa,  Synthesis and Characterization of Nickel and Sulphur Sensitized Zinc Oxide Structures.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2018, vol. 137(5). 205 - 208
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10008878.