William V. Giannobile, Brian A. Burt, Robert J. Genco
Blackwell, 2010
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[edited by] Aubrey Sheiham ... [and others]
Quintessence Editora, 2014
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World Health Organization
World Health Organization, 2013
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World Health Organization
World Health Organization, 1997
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Kostlan, J.
World Health Organization Regional Office for Europe, 1979
Buku Teks