Gaya APA

Karya, P, V. (1988). Asbuton Variability and Resource Definition Coring and Drilling Programs Buton Island: Feasibility Study For Refining Of Asbuton . Jakarta: Alberta Research Councill.

Gaya MLA

Karya, PT, Virama. "Asbuton Variability and Resource Definition Coring and Drilling Programs Buton Island: Feasibility Study For Refining Of Asbuton". Jakarta: Alberta Research Councill, 1988. Chart.