Amudha Kadirvelu and  Sivalal Sadasivan,  Use of a Learner's Log for Effective Self-Directed Learning in PBL.   journal   = {International Journal of Psychological and Behavioral Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2013, vol. 73(1). 168 - 171
    [viewed 14 August 2022]. Available from: https://publications.waset.org/pdf/4942.