Sufean Hussin. (1986). Solving open-sentences in multiplication and division: Factors related to the performance of Primary III and IV pupils.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sufean Hussin. Solving Open-sentences in Multiplication and Division: Factors Related to the Performance of Primary III and IV Pupils. 1986.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sufean Hussin. Solving Open-sentences in Multiplication and Division: Factors Related to the Performance of Primary III and IV Pupils. 1986.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.