Gaya APA

sutito, A, S, B. (1994). Visitor Use Management At Bromo Tengger Semeru National Park East Java Indonesia . : North Dakota Unversity.

Gaya MLA

sutito, Agus, Sriyadi, Budi. "Visitor Use Management At Bromo Tengger Semeru National Park East Java Indonesia". : North Dakota Unversity, 1994. Text.