Cita APA (7th ed.)

Sigua, R. G., & De Guzman, M. P. (2016). Application of a knowledge-based expert system for intersection improvement. Philippine Engineering Journal.

Cita Chicago (17th ed.)

Sigua, Ricardo G., i Mark P. De Guzman. "Application of a Knowledge-based Expert System for Intersection Improvement." Philippine Engineering Journal 2016.

Cita MLA (9th ed.)

Sigua, Ricardo G., i Mark P. De Guzman. "Application of a Knowledge-based Expert System for Intersection Improvement." Philippine Engineering Journal, 2016.