. (2004). . (e124043). Strategy, 12(2), e124043
. "" .e124043 , Strategy, 12, 2, 2004, e124043.
. (2004). '', Strategy, 12(2), e124043.
, "," Strategy, 12 2 (2004): e124043,
. . Strategy. 2004;12(2):e124043 (In Persian).
