Improving instruction : supervision by principals of secondary schools
| Main Author: | Briggs, Thomas H. |
|---|---|
| Format: | Buku Teks |
| Language: | Eng |
| Published: |
The Macmillan Co
1938
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| Subjects: | |
| Online Access: |
http://www.library.usd.ac.id//web/index.php?pilih=search&p=1&q=19647&go=Detail |