Noraini Idris. (1998). Spatial visualization, field dependence/independence, Van Hiele level, and achievement in geometry: The influence of selected activities for middle school students.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Noraini Idris. Spatial Visualization, Field Dependence/independence, Van Hiele Level, and Achievement in Geometry: The Influence of Selected Activities for Middle School Students. 1998.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Noraini Idris. Spatial Visualization, Field Dependence/independence, Van Hiele Level, and Achievement in Geometry: The Influence of Selected Activities for Middle School Students. 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.