Pepper, Darrell W., author
Imperial College Press, 2009
Buku Teks
edited by Carlos Borrego, Ann-Lise Norman
Springer, 2007
Buku Teks
Dewi Eviane, author
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
Colbeck, I. (Ian), author
Elsevier, 1994
Buku Teks