edited by Carlos Borrego, Ann-Lise Norman
Springer, 2007
Buku Teks
Dewi Eviane
Pusat Penelitian dan Pengabdian Pada Masyarakat (P3M) STTA, 2021
Artikel Jurnal
Davenport, S.J.
Washington, DC: United States Department of the Interior, 1954
Buku Teks
De Nevers, Noel, 1932-
McGraw-Hill, 1995
Buku Teks
edited by David R. Patrick
Van Nostrand Reinhold, 1994
Buku Referensi