Yunmar, Rajif Agung. “Ontology Learning Pada Teks Tidak Terstruktur”. Electrician : Jurnal Rekayasa dan Teknologi Elektro 14, no. 2 (May 15, 2020): 46-51. Accessed July 26, 2025. http://electrician.unila.ac.id/index.php/ojs/article/view/2139.