Velasco, M. M. (2019). Big-time oil price rollback set: As much as P3.50 per liter expected to be slashed on pump price next week. Manila Bulletin.
Chicago-viite (17. p.)Velasco, Myrna M. "Big-time Oil Price Rollback Set: As Much as P3.50 Per Liter Expected to Be Slashed on Pump Price Next Week." Manila Bulletin 2019.
MLA-viite (9. p.)Velasco, Myrna M. "Big-time Oil Price Rollback Set: As Much as P3.50 Per Liter Expected to Be Slashed on Pump Price Next Week." Manila Bulletin, 2019.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.