Gan, L. E. (1991). Teachers' utilization of resource materials in the teaching and learning of KBSM geography in secondary schools in Melaka.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Gan, Lee Eng. Teachers' Utilization of Resource Materials in the Teaching and Learning of KBSM Geography in Secondary Schools in Melaka. 1991.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Gan, Lee Eng. Teachers' Utilization of Resource Materials in the Teaching and Learning of KBSM Geography in Secondary Schools in Melaka. 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.