Gaya APA

Halmahera, P, P, I. et al (1982). Gombong Cement Plant Feasibility Study : Volume I Market, Financial and Organization . Jakarta: P.T. Permata Inka Halmahera.

Gaya MLA

Halmahera, P.T., Permata, Inka. et al. "Gombong Cement Plant Feasibility Study : Volume I Market, Financial and Organization". Jakarta: P.T. Permata Inka Halmahera, 1982. Text.