. (2005). . (e124134). Strategy, 13(3), e124134
. "" .e124134 , Strategy, 13, 3, 2005, e124134.
. (2005). '', Strategy, 13(3), e124134.
, "," Strategy, 13 3 (2005): e124134,
. . Strategy. 2005;13(3):e124134 (In Persian).
