WASET
    S.K. Mazloomi and  Nasri b. Sulaiman,  Efficiency Enhancement of PWM Controlled Water Electrolysis Cells.   journal   = {International Journal of Electronics and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2011, vol. 50(2). 198 - 202
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/1068.