. (2004). . (e124039). Strategy, 12(2), e124039
. "" .e124039 , Strategy, 12, 2, 2004, e124039.
. (2004). '', Strategy, 12(2), e124039.
, "," Strategy, 12 2 (2004): e124039,
. . Strategy. 2004;12(2):e124039 (In Persian).
