. (2005). . (e124126). Strategy, 13(2), e124126
. "" .e124126 , Strategy, 13, 2, 2005, e124126.
. (2005). '', Strategy, 13(2), e124126.
, "," Strategy, 13 2 (2005): e124126,
. . Strategy. 2005;13(2):e124126 (In Persian).
