Mitigasi risiko bencana tanah longsor melalui penataan ruang untuk keberlanjutan produksi panas bumi (studi di lapangan panas bumi x, Provinsi Jawa Barat) = Disaster risk mitigation of landslide through spatial planning for sustainability of geothermal production (study on x geothermal field West Java Province) / Herawanti Kumalasari