Gaya APA

Dr.LEITHE, M, E, K, &. (1957). The Coal deposit from Bukit Asam in South-East Sumatera "Wedexro" Vol 3 Fasc. 2 . Bandung: Direktorat Batubara.

Gaya MLA

Dr.LEITHE, Min., Eng., KLEES, &. "The Coal deposit from Bukit Asam in South-East Sumatera "Wedexro" Vol 3 Fasc. 2". Bandung: Direktorat Batubara, 1957. Batubara.