WASET
    Triyanto,  Improving Teacher Profesionalism through Certification Program: An Indonesia Case Study.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    July 2012, vol. 67(7). 1868 - 1872
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10368.