Setiawan, Ivan, Fauziah Fauziah, and Andrianingsih Andrianingsih. 2020. “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”. Jurnal Mantik 3 (4):474-83. https://iocscience.org/ejournal/index.php/mantik/article/view/601.