Gaya APA
(dkk.), F, U, D. (2009).
Pengembangan Proses Upgraded Brown Coal dan Operasional UBC Demonstration Plant .
Bandung:
Puslitbang Teknologi Mineral dan Batubara.
Gaya MLA
(dkk.), Fatia, Umar,, Datin.
"Pengembangan Proses Upgraded Brown Coal dan Operasional UBC Demonstration Plant".
Bandung:
Puslitbang Teknologi Mineral dan Batubara,
2009.
Text.