The weaknesses of the Grade Six pupils of Sablan District, Benguet Division in the study of rational numbers during the school year 1969-1970 [microform]
| Príomhchruthaitheoir: | |
|---|---|
| Formáid: | Visual Material |
| Teanga: | English |
| Foilsithe / Cruthaithe: |
Quezon City
Photoduplication Service, University of the Philippines Library
1975.
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| Ábhair: |