Añonuevo, E. P. C. (2006). Petron to spend bulk of capex on petrochemicals. Manila Times.
Chicago-viite (17. p.)Añonuevo, Euan Paulo C. "Petron to Spend Bulk of Capex on Petrochemicals." Manila Times 2006.
MLA-viite (9. p.)Añonuevo, Euan Paulo C. "Petron to Spend Bulk of Capex on Petrochemicals." Manila Times, 2006.
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