A Comparison of pupil achievement in elementary mathematics using individualized instruction utilizing self-directed instructional materials and the teacher-directed mastery-based method
| मुख्य लेखक: | |
|---|---|
| स्वरूप: | पुस्तक |
| भाषा: | English |
| प्रकाशित: |
Zamboanga City
Western Mindanao State University
1981.
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| विषय: |