Interactive encyclopedia to the environment biosphere
Morgan Interactive, 1999
 Multimedia
Annual editions : environment 00/01
editor, John L. Allen
Dushkin/McGraw-Hill, 2000
 Buku Referensi
Management of environment / edited by B. Patel on behalf of the Dr. A.K. Ganguly Felicitation Committee.
Wiley Eastern, 1980
 Buku Teks
Kaufman, Donald G., author
Biosphere 2000 : protecting our global environment
Kendall/Hunt, 1996
 Buku Teks
Yosef, author
Hubungan kondisi sarana dan prasarana bagi pengelolaan ekowisata (studi kasus: Taman Nasional Betung Kerihun; Kalimantan Barat)
Program Pascasarjana Universitas Indonesia, 2002
 UI - Tesis (Membership)
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