Ramazan Hasanzadeh and Leyla Vatandoust , The Efficacy of Motivation Management Training for Students’ Academic Achievement and Self-Concept. journal = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology. July 2017, vol. 127(7). 1945 - 1948 [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/10007851.