(2007). GSIS replaces outdated pension scheme with eCard. Manila Standard Today.
Chicago-referens (17:e uppl.)"GSIS Replaces Outdated Pension Scheme with ECard." Manila Standard Today 2007.
MLA-referens (9:e uppl.)"GSIS Replaces Outdated Pension Scheme with ECard." Manila Standard Today, 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.