Geducos, A. C. B. Build waste treatment facilities, Duterte tells private firms. Manila Bulletin.
Chicago-viite (17. p.)Geducos, Argyll Cyrus B. "Build Waste Treatment Facilities, Duterte Tells Private Firms." Manila Bulletin .
MLA-viite (9. p.)Geducos, Argyll Cyrus B. "Build Waste Treatment Facilities, Duterte Tells Private Firms." Manila Bulletin, .
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