Kleber, Will
VEB Verlag Technik, 1970
Buku Teks
Phillips, F.C.
Logman, 1960
Buku Teks
Woolfson, M.M.
Vikas Publishing House, 970
Buku Teks
Flint, Y.
Peaca Publishers, 1964
Buku Teks
edited by J. Montheath Robertson
Butherworth Heinemman, 1972
Buku Teks