Pusat Penelitian dan Pengembangan Geologi (Indonesia). (1981). Publication of the Geological Research and Development Centre. Republic of Indonesia, Ministry of Mines and Energy, Directorate General of Mines, Geological Research and Development Centre.
Παραπομπή σε μορφή Chicago (17η εκδ.)Pusat Penelitian dan Pengembangan Geologi (Indonesia). Publication of the Geological Research and Development Centre. Bandung, Indonesia: Republic of Indonesia, Ministry of Mines and Energy, Directorate General of Mines, Geological Research and Development Centre, 1981.
Παραπομπή σε μορφή MLA (8th εκδ.)Pusat Penelitian dan Pengembangan Geologi (Indonesia). Publication of the Geological Research and Development Centre. Republic of Indonesia, Ministry of Mines and Energy, Directorate General of Mines, Geological Research and Development Centre, 1981.