Studi Hidrogeokimia Daerah Panas Bumi Gedong Songo, Gunung Ungaran, Jawa Tengah = Hydrogeochemical Study of Gedong Songo Geothermal Area, Mount Ungaran, Central Java

Analisis morfostruktur dan hidrogeokimia sistem panas bumi Lapangan Karaha Bodas – Talaga Bodas, Jawa Barat = Morfostructure and hidrogeochemical analysis of geothermal systems in Karaha Bodas – Talaga Bodas Field, West Java

Pengaruh penggunaan tanah terhadap kualitas air di daerah aliran Ci Leungsi = Effect of land use on the quality of water in Ci Leungsi watershed

Pengaruh penggunaan tanah terhadap kualitas air di daerah aliran Ci Lutung: studi kasus: Sub-DA Ci Deres, Sub-DA Ci Jurey, dan Sub-DA Ci Saar = Impact of land use on water quality in Ci Lutung watershed: case study: Ci Deres Sub-Watershed, Ci Jurey Ci Deres Sub-Watershed, and Ci Saar Ci Deres Sub-Watershed

Pengaruh penggunaan lahan tambak terhadap kualitas air saluran irigasi tambak di muara daerah aliran Cimanceuri (Kabupaten Tangerang) = The Effect of fishponds towards the quality of water irrigation in Ci Manceuri watershed