Lokmanhakim Ab Wahid. (2002). Age and performance: The performance of young and older teachers in the district of Larut Matang in Perak from the perspective of school principals. International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lokmanhakim Ab Wahid. Age and Performance: The Performance of Young and Older Teachers in the District of Larut Matang in Perak from the Perspective of School Principals. Gombak, Selangor: International Islamic University Malaysia, 2002.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Lokmanhakim Ab Wahid. Age and Performance: The Performance of Young and Older Teachers in the District of Larut Matang in Perak from the Perspective of School Principals. International Islamic University Malaysia, 2002.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.