Koppikar, V. (1996). Manual of vacations and careers (5th rev.). Career Counsellers pvt. ltd.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKoppikar, Vivek. Manual of Vacations and Careers. 5th rev. Mumbai: Career Counsellers pvt. ltd, 1996.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKoppikar, Vivek. Manual of Vacations and Careers. 5th rev. Career Counsellers pvt. ltd, 1996.
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