Lau, E. K. (1998). Teachers' perceptions of the principal's leadership behavior and the school discipline. International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lau, Eng Keong. Teachers' Perceptions of the Principal's Leadership Behavior and the School Discipline. Gombak: International Islamic University Malaysia, 1998.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Lau, Eng Keong. Teachers' Perceptions of the Principal's Leadership Behavior and the School Discipline. International Islamic University Malaysia, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.