Cheang, M. C. (1997). Modeling Workflow Processes Based on Tasks and Transactions: A Case Study of the UPM Graduate School Office.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cheang, Mei Chuin. Modeling Workflow Processes Based on Tasks and Transactions: A Case Study of the UPM Graduate School Office. 1997.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Cheang, Mei Chuin. Modeling Workflow Processes Based on Tasks and Transactions: A Case Study of the UPM Graduate School Office. 1997.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.