Macairan, E. (2021). New concession agreement signed with Manila Water -- Guevarra. Philippine Star.
Chicago-referens (17:e uppl.)Macairan, Evelyn. "New Concession Agreement Signed with Manila Water -- Guevarra." Philippine Star 2021.
MLA-referens (9:e uppl.)Macairan, Evelyn. "New Concession Agreement Signed with Manila Water -- Guevarra." Philippine Star, 2021.
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