The Effect of Approach and Avoidance Referents on Academic Outcomes: A Test of Competing Predictions
Motivation and Emotion (2006) - Comment
doi: 10.1007/s11031-006-9027-8  issn: 0146-7239  issn: 1573-6644 

Helen W. Sullivan, Keilah A. Worth, Austin S. Baldwin, Alexander J. Rothman