Ducusin, L. (2001). Selected services outsourced to private firms: SSS privatization as begins. Manila Times.
Chicago (17e ed.) BronvermeldingDucusin, LeeAnn. "Selected Services Outsourced to Private Firms: SSS Privatization as Begins." Manila Times 2001.
MLA (9e ed.) BronvermeldingDucusin, LeeAnn. "Selected Services Outsourced to Private Firms: SSS Privatization as Begins." Manila Times, 2001.
Let op: Deze citaties zijn niet altijd 100% accuraat.