The Open University. Course Team
The Open University Press, 1984
Buku Referensi
Artikel Jurnal
Garrison, Tom, 1942-, author
National Geographic Learning/Cengage Learning, 2016
Buku Teks
Artikel Jurnal
Ricky Rositasari, author
Pusat Penelitian Oseanografi - LIPI, 2016
Artikel Jurnal