. (2001). Introduction of documents. Social Security Journal, 3(3), 237–291.
. "Introduction of documents", Social Security Journal, 3, 3, 2001, 237–291.
. (2001). 'Introduction of documents', Social Security Journal, 3(3), pp. 237–291.
, "Introduction of documents." Social Security Journal, 3 3 (2001): 237–291,
. Introduction of documents. Social Security Journal. 2001;3(3):237–291 (In Persian).