Colina, A. L. I. (2016). Business leaders support Duterte's separation from US. Manila Bulletin.
Lua i Stíl Chicago (17ú heag.)Colina, Antonio L. IV. "Business Leaders Support Duterte's Separation from US." Manila Bulletin 2016.
Lua MLA (9ú heag.)Colina, Antonio L. IV. "Business Leaders Support Duterte's Separation from US." Manila Bulletin, 2016.
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