edited by Michael Bowman and Catherine Redgwell
Kluwer Law International, 1996
Buku Teks
Katrina Brown ... [et al.]
The Global Environment Facility, 1993
Buku Teks
Spellerberg, Ian F., author
Cambridge University Press, 1992
Buku Teks
edited by Hugh Synge
John Wiley & Sons, 1981
Buku Teks
Kantor Menteri Negara Kependudukan dan Lingkungan Hidup, 1992
Buku Referensi