Hadiyanto, Hadiyanto, Sekretariat Badan Geologi, Indonesia

• Buletin Sumber Daya Geologi Vol. 1 No. 1 (2006): Buletin Sumber Daya Geologi - Buletin Sumber Daya Geologi
  INDONESIA CBM DEVELOPMENT CHALLENGES AND OPPORTUNITIES
  Abstract  PDF (Bahasa Indonesia)  PDF