Preliminary Report On The Rehabilitation Of The Ombilin Coal Mines. "Wedexro" 1956, Vol.3 Fasc.3c.
the ombilin coal depostits in the padang highlands (minang kabau) situated near sawahlunto and connected by a 160 km rackrail with padang on the west coast of central sumatra were doscovered in 1868 by de greve and later mapped out by verbeek in 1875
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Judul Seri
-
No. Panggil
PMB LA 1956 - 1
Penerbit
Bandung :
Direktorat Jenderal Pertambangan Umum Direktorat Batubara.,
1956