Student engagement in high school classrooms from the perspective of flow theory
School Psychology Quarterly (2003) - Comment
doi: 10.1521/scpq.18.2.158.21860  issn: 1939-1560  issn: 1045-3830 

David J. Shernoff, Mihaly Csikszentmihalyi, Barbara Shneider, Elisa Steele Shernoff