Intrinsic Versus Extrinsic Motivation: An Approach/Avoidance Reformulation
Martin V. Covington, Kimberly J. MüellerVolume:
13
Language:
english
Pages:
20
DOI:
10.1023/a:1009009219144
Date:
June, 2001
File:
PDF, 89 KB
english, 2001