. (2004). . (e124038). Strategy, 12(2), e124038
. "" .e124038 , Strategy, 12, 2, 2004, e124038.
. (2004). '', Strategy, 12(2), e124038.
, "," Strategy, 12 2 (2004): e124038,
. . Strategy. 2004;12(2):e124038 (In Persian).
