(1997). Implementing rules and regulations of the Government Service Insurance System Act of 1997. Philippine Star.
Čikaški stil citiranja (17. izdanje)"Implementing Rules and Regulations of the Government Service Insurance System Act of 1997." Philippine Star 1997.
MLA način citiranja (9. izdanje)"Implementing Rules and Regulations of the Government Service Insurance System Act of 1997." Philippine Star, 1997.
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