APA (7 वां संस्करण) प्रशस्ति पत्र

Gopalakrishna D. (2022). A Study Of Managerial Economics (4th.). Himalaya Publishing House Pvt. Ltd.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Gopalakrishna D. A Study Of Managerial Economics. 4th. Mumbai: Himalaya Publishing House Pvt. Ltd, 2022.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Gopalakrishna D. A Study Of Managerial Economics. 4th. Himalaya Publishing House Pvt. Ltd, 2022.