. (2007). -. (e28222). Philosophy, 4(2), e28222
. "-" .e28222 , Philosophy, 4, 2, 2007, e28222.
. (2007). '-', Philosophy, 4(2), e28222.
, "-," Philosophy, 4 2 (2007): e28222,
. -. Philosophy. 2007;4(2):e28222 (In Persian).
