Kurnianto, F.A. et al. 2017. LEVEL OF KNOWLEDGE OF SENIOR HIGH SCHOOL STUDENTS TO NORTH COASTAL OF JAVA CONSERVATION: Fahmi Arif Kurnianto, Bejo Apriyanto , Elan Artono Nurdin , Fahrudi Ahwan Ikhsan. Geosfera Indonesia. 1, 1 (Dec. 2017), 22–28. DOI:https://doi.org/10.19184/geosi.v1i1.6192.