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| 510.71268221 (1) |
| Academic achievement -- South Africa -- Johannesburg (1) |
| Academic performance (1) |
| Classroom management -- South Africa – Johannesburg (1) |
| Disruptive classroom behaviour (1) |
| Grade 10 mathematics (1) |
| High school students -- South Africa -- Johannesburg -- Attitudes (1) |
| High school students -- South Africa -- Johannesburg -- Conduct of life (1) |
| Johannesburg East District (1) |
| Lack of concentration (1) |
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