Orig, T. S. (2001). Solar electric firm completes wind, sun power hybrid in Angat. Manila Bulletin.
Chicagoスタイル(17版)引用形式Orig, Thor S. "Solar Electric Firm Completes Wind, Sun Power Hybrid in Angat." Manila Bulletin 2001.
MLA(9版)引用形式Orig, Thor S. "Solar Electric Firm Completes Wind, Sun Power Hybrid in Angat." Manila Bulletin, 2001.
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