Soewarno, S., & Yuningsih, S. (2004). Hydrological Characteristics of Kaligarang Watershed. Universitas Muhammadiyah Surakarta.
Chicago (17e ed.) BronvermeldingSoewarno, Soewarno, en Srimulat Yuningsih. Hydrological Characteristics of Kaligarang Watershed. Universitas Muhammadiyah Surakarta, 2004.
MLA (9e ed.) BronvermeldingSoewarno, Soewarno, en Srimulat Yuningsih. Hydrological Characteristics of Kaligarang Watershed. Universitas Muhammadiyah Surakarta, 2004.
Let op: Deze citaties zijn niet altijd 100% accuraat.