Dolphin, Warren D.
McGraw-Hill, Higher Education, 2008
Buku Teks
Katrina Brown ... [et al.]
The Global Environment Facility, 1993
Buku Teks
edited by Michael Bowman and Catherine Redgwell
Kluwer Law International, 1996
Buku Teks
Kantor Menteri Negara Kependudukan dan Lingkungan Hidup, 1992
Buku Referensi
Mayr, Ernst
Belknap Press, 1982
Buku Teks