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- [6] 9TH GRADERS PERCEPTIONS OF THEIR FAILURES IN ACADEMIC SUBJECTS VOCATIONAL GUIDANCE QUARTERLY, 1964, 12 (04): : 261 - 264
- [7] INFERENCING AND COMPREHENSION IN 9TH GRADERS READING GEOGRAPHY TEXTBOOKS JOURNAL OF READING, 1982, 25 (05): : 424 - 428
- [9] SOME RESULTS OF AN ENRICHMENT PROGRAM FOR GIFTED 9TH GRADERS JOURNAL OF EDUCATIONAL RESEARCH, 1959, 53 (04): : 157 - 160