APA (7 वां संस्करण) प्रशस्ति पत्र

Singh, A. Textbook on Law of Contract & Specific Relief (7th.). EBC.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Singh, Avtar. Textbook on Law of Contract & Specific Relief. 7th. 2019: EBC.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Singh, Avtar. Textbook on Law of Contract & Specific Relief. 7th. EBC.