Alexander Kossiakoff 1945-, William N. Sweet, Samuel J. Seymour, Steven M. Biemer
Wiley-Interscience, 2011
Buku Teks
Boardman, John
Prentice-Hall, 1990
Buku Teks
Borky, John M.
Springer Cham, 2019
eBooks
Wymore, A. Wayne
John Wiley & Sons, 1976
Buku Teks
Hargreaves, Martin
Longman, 1996
Buku Teks