. (2001). . (e123782). Strategy, 9(2), e123782
. "" .e123782 , Strategy, 9, 2, 2001, e123782.
. (2001). '', Strategy, 9(2), e123782.
, "," Strategy, 9 2 (2001): e123782,
. . Strategy. 2001;9(2):e123782 (In Persian).
