Kothari, C. R. (2004). Research methodology: Methods and techniques (2nd ed.). New Age Techno Press.
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Chicago-čujuhus (17. p.)
Kothari, C. R. Research Methodology: Methods and Techniques. 2nd ed. New Delhi: New Age Techno Press, 2004.
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MLA-čujuhus (9. p.)
Kothari, C. R. Research Methodology: Methods and Techniques. 2nd ed. New Age Techno Press, 2004.
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