Mustafa Jahanara,  Optimism, Hope and Mental Health: Optimism, Hope, Psychological Well-Being and Psychological Distress among Students, University of Pune, India.   journal   = {International Journal of Psychological and Behavioral Sciences}, [online]. World Academy of Science, Engineering and Technology.
    June 2017, vol. 128(8). 452 - 455
    [viewed 31 May 2020]. Available from: https://publications.waset.org/pdf/10007597.