توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

De Guzman, M. P., & Sigua, R. G. (2010). Development of a knowledge-based expert system for intersection improvement. College of Engineering, University of the Philippines Diliman.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

De Guzman, Mark P., و Ricardo G. Sigua. Development of a Knowledge-based Expert System for Intersection Improvement. Quezon City: College of Engineering, University of the Philippines Diliman, 2010.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

De Guzman, Mark P., و Ricardo G. Sigua. Development of a Knowledge-based Expert System for Intersection Improvement. College of Engineering, University of the Philippines Diliman, 2010.