Lawrence, M. M. (2005). The relationship between the choice of sentences and tenses in mathematics word problems and mathematics achievement among form 1 students.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lawrence, Margaret Mary. The Relationship Between the Choice of Sentences and Tenses in Mathematics Word Problems and Mathematics Achievement Among Form 1 Students. 2005.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Lawrence, Margaret Mary. The Relationship Between the Choice of Sentences and Tenses in Mathematics Word Problems and Mathematics Achievement Among Form 1 Students. 2005.
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