1.
Siripak S. The Development of Non-Formal Education Activities Model Based on McClelland’s Achievement Motivation Theory to Enhance Achievement Motivation, Self-concept, and Increasing English Achievement Scores of Non-formal Education Leaders. scho [Internet]. 2014Oct.16 [cited 2024Jul.21];3(1). Available from: http://www.assumptionjournal.au.edu/index.php/Scholar/article/view/256