National University of Singapore. Faculty of Engineering. (1989). Engineering journal of Singapore. Faculty of Engineering, University of Singapore.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National University of Singapore. Faculty of Engineering. Engineering Journal of Singapore. Singapore: Faculty of Engineering, University of Singapore, 1989.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)National University of Singapore. Faculty of Engineering. Engineering Journal of Singapore. Faculty of Engineering, University of Singapore, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.