Landform differentiation within the Gunung Kidul Kegelkarst, Java, Indonesia
Significant Features of Gununsewu Karst as Geopark Site
Karst Research GroupFaculty of Geography, Gadjah Mada University, Yogyakarta-Indonesia
Ekologi Lingkungan Kawasan Karst Indonesia: Menjaga Asa Kelestarian Kawasan Karst Indonesia
Bahan Ajar: Geomorfologi dan Hidrologi Karst
KELOMPOK STUDI KARST FAKULTAS GEOGRAFI UNIVERSITAS GADJAH MADA