. (2001). . (e123760). Strategy, 9(2), e123760
. "" .e123760 , Strategy, 9, 2, 2001, e123760.
. (2001). '', Strategy, 9(2), e123760.
, "," Strategy, 9 2 (2001): e123760,
. . Strategy. 2001;9(2):e123760 (In Persian).
