(1997). Implementing rules and regulations of the Government Service Insurance System Act of 1997. Philippine Star.
Chicagoスタイル(17版)引用形式"Implementing Rules and Regulations of the Government Service Insurance System Act of 1997." Philippine Star 1997.
MLA(9版)引用形式"Implementing Rules and Regulations of the Government Service Insurance System Act of 1997." Philippine Star, 1997.
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