. (2002). . (e123833). Strategy, 10(3), e123833
. "" .e123833 , Strategy, 10, 3, 2002, e123833.
. (2002). '', Strategy, 10(3), e123833.
, "," Strategy, 10 3 (2002): e123833,
. . Strategy. 2002;10(3):e123833 (In Persian).
