Zakaria, N. Z. (2016). Measuring effectiveness of challenge characteristic in mobile education game in the learning of Mathematics (IR).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Zakaria, Nora Zamiah. Measuring Effectiveness of Challenge Characteristic in Mobile Education Game in the Learning of Mathematics (IR). 2016.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Zakaria, Nora Zamiah. Measuring Effectiveness of Challenge Characteristic in Mobile Education Game in the Learning of Mathematics (IR). 2016.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.