. (2004). . (e124037). Strategy, 12(2), e124037
. "" .e124037 , Strategy, 12, 2, 2004, e124037.
. (2004). '', Strategy, 12(2), e124037.
, "," Strategy, 12 2 (2004): e124037,
. . Strategy. 2004;12(2):e124037 (In Persian).
