Morgan, David
Peter Peregrinus, 1996
Buku Referensi
Bolton, William, 1933-
Longman Scientific & Technical, 1992
Buku Teks
Niazi, Sarfaraz, 1949-
CRC Press, 2015
Buku Teks
Shah, Vishu
John Wiley & Sons, 1998
Buku Referensi
Parry, Vivienne
Pan Book, 1993
Buku Referensi