Abramson, J., & Abramson , Z. H. (1999). Survey methods in community medicine: Epidemiological research programme evaluation clinical trials (5th ed.). Churchill Livingstone.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Abramson, J.H, ба Z. H. Abramson. Survey Methods in Community Medicine: Epidemiological Research Programme Evaluation Clinical Trials. 5th ed. London: Churchill Livingstone, 1999.
MLA -ийн эшлэл (9 дэх хэвлэлт)Abramson, J.H, ба Z. H. Abramson. Survey Methods in Community Medicine: Epidemiological Research Programme Evaluation Clinical Trials. 5th ed. Churchill Livingstone, 1999.
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