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. "Introduction of documents", Social Security Journal, 6, 3, 2004, 271-298.
. (2004). 'Introduction of documents', Social Security Journal, 6(3), pp. 271-298.
, "Introduction of documents," Social Security Journal, 6 3 (2004): 271-298,
. Introduction of documents. Social Security Journal. 2004;6(3):271-298 (In Persian).