I. Setiawan, F. Fauziah, and A. Andrianingsih, “Expert System for Diagnosing Diseases in Cats that Can Contagious to Humans Using the Certainty Factor Method: Expert System for Diagnosing Diseases in Cats that Can Contagious to Humans Using the Certainty Factor Method”, Mantik, vol. 3, no. 4, pp. 474-483, Feb. 2020.