FIKRI SETIAWAN09.01.53.0167. “IDENTIFIKASI WILAYAH RAWAN LONGSOR DI KABUPATEN KEBUMEN BERBASIS SIG ONLINE”. Information Technology and Telematics 3, no. 1 (October 29, 2013). Accessed July 23, 2024. https://www.unisbank.ac.id/ojs/index.php/fti3/article/view/1998.