Gaya APA

AMIN, C. et al (2017). Management of an underground river to overcome water scarcity in the Gunung Sewu Karst Area, Indonesia . : Fakultas Geografi UMS.

Gaya MLA

AMIN, Choirul. et al. "Management of an underground river to overcome water scarcity in the Gunung Sewu Karst Area, Indonesia". : Fakultas Geografi UMS, 2017. Artikel.