. (2002). . (e123887). Strategy, 10(2), e123887
. "" .e123887 , Strategy, 10, 2, 2002, e123887.
. (2002). '', Strategy, 10(2), e123887.
, "," Strategy, 10 2 (2002): e123887,
. . Strategy. 2002;10(2):e123887 (In Persian).
