. (2007). -. (e28220). Philosophy, 4(2), e28220
. "-" .e28220 , Philosophy, 4, 2, 2007, e28220.
. (2007). '-', Philosophy, 4(2), e28220.
, "-," Philosophy, 4 2 (2007): e28220,
. -. Philosophy. 2007;4(2):e28220 (In Persian).
