Filio, C. P. (1998). The concept of functional loyalty: From Hubbard to Hirschman. Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFilio, Candido P. "The Concept of Functional Loyalty: From Hubbard to Hirschman." Philippine Daily Inquirer 1998.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFilio, Candido P. "The Concept of Functional Loyalty: From Hubbard to Hirschman." Philippine Daily Inquirer, 1998.
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