. (2005). . (e124143). Strategy, 13(3), e124143
. "" .e124143 , Strategy, 13, 3, 2005, e124143.
. (2005). '', Strategy, 13(3), e124143.
, "," Strategy, 13 3 (2005): e124143,
. . Strategy. 2005;13(3):e124143 (In Persian).
