(2005). Guidelines for the Institution of a system of mandatory environmental Insurance coverage. Manila Times.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Guidelines for the Institution of a System of Mandatory Environmental Insurance Coverage." Manila Times 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Guidelines for the Institution of a System of Mandatory Environmental Insurance Coverage." Manila Times, 2005.
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