Tengco, A. M. (1995). Managing: A collection of helpful notes and quotes for executive thought and action. Academic Publishing Corporation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTengco, Alfredo M. Managing: A Collection of Helpful Notes and Quotes for Executive Thought and Action. Pasig City: Academic Publishing Corporation, 1995.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTengco, Alfredo M. Managing: A Collection of Helpful Notes and Quotes for Executive Thought and Action. Academic Publishing Corporation, 1995.
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