Nurfirdawati Muhamad Hanafi and  Azmanirah Ab Rahman and  Marina Ibrahim Mukhtar and  Jamil Ahmad and  Sarebah Warman,  Validity and Reliability of Competency Assessment Implementation (CAI) Instrument Using Rasch Model.   journal   = {International Journal of Psychological and Behavioral Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2014, vol. 85(1). 162 - 167
    [viewed 06 April 2020]. Available from: https://publications.waset.org/pdf/9997217.