. (2002). . (e123819). Strategy, 9(4), e123819
. "" .e123819 , Strategy, 9, 4, 2002, e123819.
. (2002). '', Strategy, 9(4), e123819.
, "," Strategy, 9 4 (2002): e123819,
. . Strategy. 2002;9(4):e123819 (In Persian).
