Mathew, K. N. (1963). Diagnostic study of pupil's difficulties in learning of percentages in new standard 7 and suggestions for improvement.
Chicago-tyylinen lähdeviittausMathew, K. N. Diagnostic Study of Pupil's Difficulties in Learning of Percentages in New Standard 7 and Suggestions for Improvement. 1963.
MLA-viiteMathew, K. N. Diagnostic Study of Pupil's Difficulties in Learning of Percentages in New Standard 7 and Suggestions for Improvement. 1963.
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