APA (7 वां संस्करण) प्रशस्ति पत्र

GUPTA S S. (2004). SERVICE TAX: HOW TO MEET YOUR OBLIGATIONS. TAXMANN.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

GUPTA S S. SERVICE TAX: HOW TO MEET YOUR OBLIGATIONS. NEW DELHI: TAXMANN, 2004.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

GUPTA S S. SERVICE TAX: HOW TO MEET YOUR OBLIGATIONS. TAXMANN, 2004.