Hartman, William K.
Wadswoth, 1978
Buku Teks
Hartman, William K.
Wadsworth, 1985
Buku Teks
Goldsmith, Donald
Perseus Books, 2000
Buku Teks
Jennings, Elise
[Springer, ], 2012
eBooks
edited by Michael Hoskin
Cambridge University Press, 1997
Buku Referensi