A survey of the effect of washing hands as a health habit in the incidence of parasites among public school children [microform].
| المؤلف الرئيسي: | |
|---|---|
| التنسيق: | Visual Material |
| اللغة: | English |
| منشور في: |
Quezon City
Photoduplication Service. University of the Philippines Library
1976.
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| الموضوعات: |