Gaya APA

Jenkner, D, P, A. (1957). Report on The Possibility of Using Bukit Asam Coal for the Production Of Double Coke for Metallurgical Purposes . : Wedexro.

Gaya MLA

Jenkner, Dr., Phil., A,. "Report on The Possibility of Using Bukit Asam Coal for the Production Of Double Coke for Metallurgical Purposes". : Wedexro, 1957. Batubara.