Lapangan Gunung Api Tersier Daerah Berbah Sleman - Imogiri Bantul,Yogyakarta by , G. Hartono

Waduk Parangjoho dan Songputri: Alternatif Sumber Erupsi Formasi Semilir di daerah Eromoko, Kabupaten Wonogiri, Jawa Tengah by Sutikno Bronto, Sri Mulyaningsih, G. Hartono, B. Astuti

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The Evolution of Gajahmungkur Paleovolcano, Wonogiri, Central Java, as A Reference to Revize the Terminology of “Old Andesite Formation” by Ildrem Syafri, A. Sudradjat, Nana Sulaksana, G. Hartono

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Evolution of Rajabasa Volcano in Kalianda Area and Its Vicinity, South Lampung Regency by Sutikno Bronto, P. Asmoro, G. Hartono, Sulistiyono Sulistiyono

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Gunung Api purba Watuadeg: Sumber erupsi dan posisi stratigrafi by Sutikno Bronto, Sri MulyaningSih, G. Hartono, B. Astuti

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