(2011). PSHS stude wins Math Olympiad crown. Philippine Star.
Cita Chicago (17th ed.)"PSHS Stude Wins Math Olympiad Crown." Philippine Star 2011.
Cita MLA (9th ed.)"PSHS Stude Wins Math Olympiad Crown." Philippine Star, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.