Gaya APA

INTERNASIONAL, N, L, &, A. (1988). REPUBLIC OF INDONESIA DEPARTEMEN OF MINES AND ENERGY DIRECTORATE GENERAL OF MINES . Indonesia: PT. PAMINTORI CIPTA.

Gaya MLA

INTERNASIONAL, NOEL, LAURENCE, &, ASOCIATES. "REPUBLIC OF INDONESIA DEPARTEMEN OF MINES AND ENERGY DIRECTORATE GENERAL OF MINES". Indonesia: PT. PAMINTORI CIPTA, 1988. Textbook.