(2002). Monthly salary credit ceiling, itinaas ng SSS. Kabayan.
Chicago Style aipamena"Monthly Salary Credit Ceiling, Itinaas Ng SSS." Kabayan 2002.
MLA aipamena"Monthly Salary Credit Ceiling, Itinaas Ng SSS." Kabayan, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.