Gupta, M., & Gupta,Deepa. (2011). Research methodology. PHI learning.
シカゴスタイル引用形Gupta, Mukul, , Gupta,Deepa. Research Methodology. New Delhi: PHI learning, 2011.
MLA引用形式Gupta, Mukul, , Gupta,Deepa. Research Methodology. PHI learning, 2011.
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