“KOMBINASI METODE BACKWARD CHAINING DAN CERTAINTY FACTOR MENDIAGNOSA PENYAKIT GANGGUAN ANSIETAS”. JOURNAL OF SCIENCE AND SOCIAL RESEARCH 6, no. 3 (October 13, 2023): 657–662. Accessed August 4, 2026. https://goretanpena.com/jurnal/index.php/JSSR/article/view/1469.