APA (7 वां संस्करण) प्रशस्ति पत्र

Angeles, J. I. . A. (1991). The management of NGOs: Case studies of Asian Non-Governmental Organizations. APPROTEC Asia.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Angeles, Jose Ibarra A. The Management of NGOs: Case Studies of Asian Non-Governmental Organizations. Manila: APPROTEC Asia, 1991.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Angeles, Jose Ibarra A. The Management of NGOs: Case Studies of Asian Non-Governmental Organizations. APPROTEC Asia, 1991.