. (2007). . (e124237). Strategy, 14(4), e124237
. "" .e124237 , Strategy, 14, 4, 2007, e124237.
. (2007). '', Strategy, 14(4), e124237.
, "," Strategy, 14 4 (2007): e124237,
. . Strategy. 2007;14(4):e124237 (In Persian).
