. (2004). . (e124041). Strategy, 12(2), e124041
. "" .e124041 , Strategy, 12, 2, 2004, e124041.
. (2004). '', Strategy, 12(2), e124041.
, "," Strategy, 12 2 (2004): e124041,
. . Strategy. 2004;12(2):e124041 (In Persian).
