by A. Ciferri, R. Krigbaum and Robert B. Meyer
Academic Press, 1982
Buku Teks
Tschierske, Carsten, editor
Springer, 2012
eBooks
Sonnet, Andre M.
[, Springer], 2012
eBooks
Gresser, Ion
Academic Press, 1983
Buku Teks
Kluwer Academic Publishers, 1995,
Buku Referensi