Pickover, Clifford A., author
Sterling, 2009
Buku Teks
Ellerton, Nerida
Springer, 2012
eBooks
editor, Dennis Poupard; associate editor Mark W. Scott
Gale Research Company, 1984-1989
Buku Referensi
Griffin, Dustin, author
Cambridge University Press, 2009
eBooks
edited by Stanley J. Kunitz, Howard Haycraft
H.W. Wilson, 1961; 1965
Buku Referensi