. (2005). . (e124112). Strategy, 13(2), e124112
. "" .e124112 , Strategy, 13, 2, 2005, e124112.
. (2005). '', Strategy, 13(2), e124112.
, "," Strategy, 13 2 (2005): e124112,
. . Strategy. 2005;13(2):e124112 (In Persian).
