Ferguson, C.E., author
Irwin, 1975
Buku Teks
Ferguson, C.E., author
Richard D. Irwin, 1966
Buku Teks
Hicks, John R., author
Clarendon Press, 1959
Buku Teks
Choudhury, Masudul Alam, 1948-, author
Routledge, 2017
eBooks
Henderson, James M., author
McGraw-Hill, 1980
Buku Teks