Gaya APA

Soelistijo, U., Basyuni, Y, &, A, K. (1991). The Economics of Coal Development in Indonesia . Bandung: Directorate General Of Mines.

Gaya MLA

Soelistijo, U.W., Basyuni, Y., &, A.S.,, Komaruddin. "The Economics of Coal Development in Indonesia". Bandung: Directorate General Of Mines, 1991. Text.