BALASUBRAMANIAN, P. (2013). LEARN ENGLISH GRAMMAR SKILLS WITH THRILLS -1. AMITY UNIVERSITY PRESS.
Čikaški stil citiranja (17. izdanje)BALASUBRAMANIAN, PREMA. LEARN ENGLISH GRAMMAR SKILLS WITH THRILLS -1. AMITY UNIVERSITY PRESS, 2013.
MLA način citiranja (9. izdanje)BALASUBRAMANIAN, PREMA. LEARN ENGLISH GRAMMAR SKILLS WITH THRILLS -1. AMITY UNIVERSITY PRESS, 2013.
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