Work Extrinsic and Intrinsic Motivation Scale: Its value for organizational psychology research
Canadian Journal of Behavioural Science / Revue canadienne des sciences du comportement (2009) - Comment
doi: 10.1037/a0015167  issn: 1879-2669  issn: 0008-400x 

Maxime A. Tremblay, Céline M. Blanchard, Sara Taylor, Luc G. Pelletier, Martin Villeneuve