Flores, A. M. S. (2018). Petro Gazz cuts oil prices by P1/liter. IN Cover [column]. Manila Standard.
Chicago-viite (17. p.)Flores, Alena Mae S. "Petro Gazz Cuts Oil Prices by P1/liter. IN Cover [column]." Manila Standard 2018.
MLA-viite (9. p.)Flores, Alena Mae S. "Petro Gazz Cuts Oil Prices by P1/liter. IN Cover [column]." Manila Standard, 2018.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.