Zainal Abidin, M. A. N. (2014). The relationship between extrinsic motivation and physical activity level among teachers at Sekolah Menengah Kebangsaan Alam Megah 2 / Muhd Amirul Naqiq Zainal Abidin.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Zainal Abidin, Muhd Amirul Naqiq. The Relationship Between Extrinsic Motivation and Physical Activity Level Among Teachers at Sekolah Menengah Kebangsaan Alam Megah 2 / Muhd Amirul Naqiq Zainal Abidin. 2014.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Zainal Abidin, Muhd Amirul Naqiq. The Relationship Between Extrinsic Motivation and Physical Activity Level Among Teachers at Sekolah Menengah Kebangsaan Alam Megah 2 / Muhd Amirul Naqiq Zainal Abidin. 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.