. (2003). . (e123907). Strategy, 11(1), e123907
. "" .e123907 , Strategy, 11, 1, 2003, e123907.
. (2003). '', Strategy, 11(1), e123907.
, "," Strategy, 11 1 (2003): e123907,
. . Strategy. 2003;11(1):e123907 (In Persian).
