Yap, C. Y. (2010). Predictive effects of managerial need support, basic psychological need satisfaction and role overload on work engagement.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Yap, Chui Yan. Predictive Effects of Managerial Need Support, Basic Psychological Need Satisfaction and Role Overload on Work Engagement. 2010.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Yap, Chui Yan. Predictive Effects of Managerial Need Support, Basic Psychological Need Satisfaction and Role Overload on Work Engagement. 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.