Laporan bimbingan pertambangan Jawa Timur tahun 1980
Subtitle: Soenarto, Soehargo
By: Proyek Bimbingan Pertambangan
Publisher: Direktorat Teknik Pertambangan Sub Direktorat Bimbingan
Published: 1980
Place of publication: Jakarta
Language: ind
Number of pages: 80
Description: Guidance on exploration of minerals for small entrepreneurs in Jawa Timur Province.