APA-ийн эшлэл(7 дахь хэвлэлт)

Chawla, D., & Sondhi, N. S. (2011). Research Methodology: Concept and Cases (2nd.). Vikas Publishing House Private Limited.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Chawla, Deepak, ба Neena Sondhi Sondhi. Research Methodology: Concept and Cases. 2nd. Noida: Vikas Publishing House Private Limited, 2011.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Chawla, Deepak, ба Neena Sondhi Sondhi. Research Methodology: Concept and Cases. 2nd. Vikas Publishing House Private Limited, 2011.