Dela Peña, A. S. (1989). Management advisory services: Analytical approach and process. National Book Store.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDela Peña, Arsenio S. Management Advisory Services: Analytical Approach and Process. Manila: National Book Store, 1989.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDela Peña, Arsenio S. Management Advisory Services: Analytical Approach and Process. National Book Store, 1989.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.