. (2004). . (e124042). Strategy, 12(2), e124042
. "" .e124042 , Strategy, 12, 2, 2004, e124042.
. (2004). '', Strategy, 12(2), e124042.
, "," Strategy, 12 2 (2004): e124042,
. . Strategy. 2004;12(2):e124042 (In Persian).
