D. M. Reddy Prasad and  Nur Sabrina Binti Rahmat and  Huei Ruey Ong and  Chin Kui Cheng and  Maksudur Rahman Khan and  D. Sathiyamoorthy,  Preparation and Characterization of Photocatalyst for the Conversion of Carbon Dioxide to Methanol.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2016, vol. 113(5). 552 - 555
    [viewed 05 August 2020]. Available from: https://publications.waset.org/pdf/10004335.