Gaya APA

Tobing, S. (1982). Laporan Workshop on Transporting Coal From Mine to Market : Infrastructure and Environmental Considerations 11-21 Agustus 1982 . Bandung: Direktorat Jenderal Pertambangan Umum.

Gaya MLA

Tobing, S.L.. "Laporan Workshop on Transporting Coal From Mine to Market : Infrastructure and Environmental Considerations 11-21 Agustus 1982". Bandung: Direktorat Jenderal Pertambangan Umum, 1982. Text.