. (2006). . (e124161). Strategy, 13(4), e124161
. "" .e124161 , Strategy, 13, 4, 2006, e124161.
. (2006). '', Strategy, 13(4), e124161.
, "," Strategy, 13 4 (2006): e124161,
. . Strategy. 2006;13(4):e124161 (In Persian).
