Gaya APA
Hydrogeology of Karang Mumus watershed in Samarinda, east Kalimantan province, Indonesia. (2018).
Surakarta:
Kerjasama Geography Faculty UMS dan IGI.
Gaya MLA
Hydrogeology of Karang Mumus watershed in Samarinda, east Kalimantan province, Indonesia.
.
Surakarta:
Kerjasama Geography Faculty UMS dan IGI,
2018.
Artikel.