Yulianto, Ferdian, Kemas Muslim Lhaksmana, and Danang Triantoro Murdiansyah. “Classifying Quranic Verse Topics Using Word Centrality Measure”. Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) 5, no. 3 (June 29, 2021): 594 - 601. Accessed September 19, 2021. https://jurnal.iaii.or.id/index.php/RESTI/article/view/3171.