Schwedt, Georg, author
John Wiley & Sons, 2001
Buku Referensi
Artikel Jurnal
Herbert H. P. Fang, Tong Zhang
Imperial College Press, 2015
Buku Teks
Common, Michael
Addison Wesley Longman, 1996
Buku Teks
Camougis, George, author
McGraw-Hill, 1981
Buku Teks