Gaya APA
S, D, N. et al (2017).
Geochemical Soil Survey On Northern Part of Sumatera for Joint Study CGS And CMCGR .
Bandung:
Pusat Sumber Daya Mineral BatuBara dan Panas Bumi.
Gaya MLA
S, Dwi, Nugroho. et al.
"Geochemical Soil Survey On Northern Part of Sumatera for Joint Study CGS And CMCGR".
Bandung:
Pusat Sumber Daya Mineral BatuBara dan Panas Bumi,
2017.
Umum.