Dewdney, A.K., author
W.H. Freeman, 1990
Buku Teks
editor, Harry Helms [and others]
McGraw-Hill, 1983
Buku Referensi
edited by Jan van Leeuwen
Elsevier, 1990
Buku Referensi
edited by Jan van Leeuwen
Elsevier, 1990
Buku Referensi
Yearsley, R.B., author
Gower Press, 1974
Buku Referensi