Tuhovsky,IAN. (2020). Effective Communication Skills Mastery Bible: 4 Books in 1 (NA.). Amazon.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTuhovsky,IAN. Effective Communication Skills Mastery Bible: 4 Books in 1. NA. Amazon, 2020.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTuhovsky,IAN. Effective Communication Skills Mastery Bible: 4 Books in 1. NA. Amazon, 2020.
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