. (2002). . (e123888). Strategy, 10(2), e123888
. "" .e123888 , Strategy, 10, 2, 2002, e123888.
. (2002). '', Strategy, 10(2), e123888.
, "," Strategy, 10 2 (2002): e123888,
. . Strategy. 2002;10(2):e123888 (In Persian).
