Dipippo, Ronald
Geothermal power plants : principles, applications, case studies and environmental impact
Elsevier, 2008
 Buku Teks
Dipippo, Ronald
Geothermal power plants : principles, applications, case studies and environmental impact
Butterworth-Heinemann, 2012
 Buku Teks
Misra, S.P.
Essential environmental studies
CRC Press, Taylor & Francis Group, 2008
 Buku Teks
Ancient Law in Eurasia
 Artikel Jurnal
Proceeding : symposium environmental education approaches in environmental science research and studies
Wiranda G. Piliang, Lukman Rahardja, editor
Life Science Inter University Center, Faculty of Graduate Studies, Bogor Agricultural University, 1990
 Buku Referensi