Hariyanto, Teguh, Hendayani Hendayani, and Maila Zumita. “VALUASI ONDISI UTUPAN AHAN I ADUK AJAH UNGKUR AN EPANJANG UB AS ENGAWAN OLO ULU ENGAN ENGGUNAKAN ETODE LASIFIKASI ERBIMBING”. GEOID 4, no. 2 (February 1, 2009): 171–176. ccessed December 6, 2025. https://journal.its.ac.id/index.php/geoid/article/view/1270.