(2000). Corporate responsibility as a core business strategy. Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"Corporate Responsibility as a Core Business Strategy." Philippine Daily Inquirer 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"Corporate Responsibility as a Core Business Strategy." Philippine Daily Inquirer, 2000.
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