(1997). Primer on the GSIS Act of 1997 (RA 8291). Government Service Insurance System.
Čikaški stil citiranja (17. izdanje)Primer on the GSIS Act of 1997 (RA 8291). [Metro Manila]: Government Service Insurance System, 1997.
MLA način citiranja (9. izdanje)Primer on the GSIS Act of 1997 (RA 8291). Government Service Insurance System, 1997.
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