. (2007). . (e124274). Strategy, 15(3), e124274
. "" .e124274 , Strategy, 15, 3, 2007, e124274.
. (2007). '', Strategy, 15(3), e124274.
, "," Strategy, 15 3 (2007): e124274,
. . Strategy. 2007;15(3):e124274 (In Persian).
