Attwell, P.B., author
Chapman and Hall, 1976
Buku Teks
Gilluly, James, author
W.H. Freeman, 1959
Buku Teks
Gilluly, James, author
W.H. Freeman, 1968
Buku Teks
Gilluly, James, author
W.H. Freeman, 1975
Buku Referensi
Bell, F.G., author
Butherworth Heinemman, 1976
Buku Teks