APA (7 वां संस्करण) प्रशस्ति पत्र

PINK & THOMAS. (2009). ENGLISH GRAMMAR AND COMPOSITION AND EFFECTIVE BUSINESS COMMUNICATION (12th.). S CHAND PUBL.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

PINK & THOMAS. ENGLISH GRAMMAR AND COMPOSITION AND EFFECTIVE BUSINESS COMMUNICATION. 12th. NEW DELHI: S CHAND PUBL, 2009.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

PINK & THOMAS. ENGLISH GRAMMAR AND COMPOSITION AND EFFECTIVE BUSINESS COMMUNICATION. 12th. S CHAND PUBL, 2009.