Jensen, P. D. Towards a sustainable water future. IN Opinion. The Philippine Star.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJensen, Poul Due. "Towards a Sustainable Water Future. IN Opinion." The Philippine Star .
एमएलए (9वां संस्करण) प्रशस्ति पत्रJensen, Poul Due. "Towards a Sustainable Water Future. IN Opinion." The Philippine Star, .
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