KAUL, M. (2017). THE NEW GRAMMAR TREE BASIC ENGLISH GRAMMAR AND COMPOSITION - BOOK 6. OXFORD UNIVERSITY PRESS.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKAUL, MRIDULA. THE NEW GRAMMAR TREE BASIC ENGLISH GRAMMAR AND COMPOSITION - BOOK 6. NEW DELHI: OXFORD UNIVERSITY PRESS, 2017.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKAUL, MRIDULA. THE NEW GRAMMAR TREE BASIC ENGLISH GRAMMAR AND COMPOSITION - BOOK 6. OXFORD UNIVERSITY PRESS, 2017.
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