Earth architecture
Artikel Jurnal
Letters from a prince Edward, Prince of Wales to Mrs Freuda Dudley Ward / edited by Rupert Godfrey
Little, Brown and Company , 1998
Buku Teks
Gore, Al
Earth in the balance : forging a new common purpose
Earthscan, 2007
Buku Teks
World water balance and water resources of the earth
Unesco, 1978
Buku Referensi
Morton, H. V.
Atlantic meeting; an account of Mr. Churchill’s voyage in H. M. S. Prince of Wales, in August, 1941
Methuen & Co, 1943
Buku Teks SO