Sulistyo, B., Gunawan, T., Hartono, H., Danoedoro, P. and Martanto, R. (2017) “PROPOSED MODEL ON LEVELS OF DEGRADED LAND AT MERAWU WATERSHED, BANJARNEGARA REGENCY, CENTRAL JAVA PROVINCE, INDONESIA”, BIOTROPIA, 24(3), pp. 220–229. doi: 10.11598/btb.2017.24.3.730.