Certo, S. C. (2006). Supervision: Concepts and skill building (5th ed.). McGraw-Hill/Irwin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCerto, Samuel C. Supervision: Concepts and Skill Building. 5th ed. Boston: McGraw-Hill/Irwin, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCerto, Samuel C. Supervision: Concepts and Skill Building. 5th ed. McGraw-Hill/Irwin, 2006.
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