Gaya APA

Utomo, E, P, E, A. (2001). Proceeding Third Asian Symposium on Engineering Geology and The Environment: Natural Resources Management for Regional Development in Tropical Area . Yogyakarta: International Research Centre for the Management of Degraded and Mining Lands.

Gaya MLA

Utomo, Edi, Prasetyo, Et, All. "Proceeding Third Asian Symposium on Engineering Geology and The Environment: Natural Resources Management for Regional Development in Tropical Area". Yogyakarta: International Research Centre for the Management of Degraded and Mining Lands, 2001. Text.