Cahyono, Deni Tri, and Danar Guruh Pratomo. “NALISA ASIL ENGAMATAN ASANG URUT IR AUT ETODE ANGSUNG AN IDAK ANGSUNG”. GEOID 3, no. 2 (February 1, 2008): 130–138. ccessed December 6, 2025. https://journal.its.ac.id/index.php/geoid/article/view/1234.