Gaya APA

Lohr, A. (2005). Ecological Effects and Environmental Impact of The Extremely Acidic Banyupahit-Banyuputih River and The Kawah Ijen Crater Lake in Indonesia . The Netherlands: Vrije Universiteit.

Gaya MLA

Lohr, Ansje. "Ecological Effects and Environmental Impact of The Extremely Acidic Banyupahit-Banyuputih River and The Kawah Ijen Crater Lake in Indonesia". The Netherlands: Vrije Universiteit, 2005. Text.