Gaya APA

BATUBARA, ., Jenkner, D, P, A. (1957). Re-examination Of The Coal Samples Fom SE-Kalimantan And Bajah And Calculations For The Economi Of A Low-temperature Carbonizing Plant . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

BATUBARA, ., Jenkner, Dr., Phil, A. "Re-examination Of The Coal Samples Fom SE-Kalimantan And Bajah And Calculations For The Economi Of A Low-temperature Carbonizing Plant". Bandung: Pusat Sumber Daya Geologi, 1957. Batubara.