Toyryla, I. (1999). Realising the potential of traceability: A case study research on usage and impacts of product traceability. Finnish Academy of Technology.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Toyryla, Ilkka. Realising the Potential of Traceability: A Case Study Research on Usage and Impacts of Product Traceability. Espoo, Finland: Finnish Academy of Technology, 1999.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Toyryla, Ilkka. Realising the Potential of Traceability: A Case Study Research on Usage and Impacts of Product Traceability. Finnish Academy of Technology, 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.