Krippendorff, K. (2013). Content Analysis An Introduction to Its Methodology. SAGE.
Lua i Stíl Chicago (17ú heag.)Krippendorff, Klaus. Content Analysis An Introduction to Its Methodology. SAGE, 2013.
Lua MLA (8ú heag.)Krippendorff, Klaus. Content Analysis An Introduction to Its Methodology. SAGE, 2013.
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