Theraja, B.L.
S. Chand & Company , 1995
Buku Teks
Firth, C. Barry, author
McGraw-Hill, 1979
Buku Teks
Snow, Charles W.
Prentice-Hall, 1976
Buku Teks
McPherson, George
Wiley, 1981
Buku Teks
Kostenko, M. P. (Mikhail Polievktovich), 1889-1976, author
Peace Publishers,
Buku Teks