Gaya APA
C.Hevhaar, . (1925).
Special Report By Ir. C. ter Haar On The Geology Of Part Of the Sub-District Pasir In The Residency Of The Southern & Eastern Districts Of Borneo .
Bandung:
Sub Direktorat Inventarisasi Panasbumi.
Gaya MLA
C.Hevhaar, .
"Special Report By Ir. C. ter Haar On The Geology Of Part Of the Sub-District Pasir In The Residency Of The Southern & Eastern Districts Of Borneo".
Bandung:
Sub Direktorat Inventarisasi Panasbumi,
1925.
Batubara.