. (2001). . (e123762). Strategy, 9(2), e123762
. "" .e123762 , Strategy, 9, 2, 2001, e123762.
. (2001). '', Strategy, 9(2), e123762.
, "," Strategy, 9 2 (2001): e123762,
. . Strategy. 2001;9(2):e123762 (In Persian).
