Difficulties of teachers teaching elementary mathematics in the public elementary schools in the Division of Dagupan City for the school year 1961-1972 a critical analysis
| Prif Awdur: | |
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| Fformat: | Visual Material |
| Iaith: | English |
| Cyhoeddwyd: |
Quezon City
University of the Philippines Library
1979.
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| Pynciau: |