Krug, Ronald S.
Springer-Verlag, 1992
Buku Teks
Edwards, Allen L.
Holt, Rinehart and Winston, 1964
Buku Teks
Samuel Kotz, Norman L.. Johnson, editors-in-chief
John Wiley & Sons, Inc, 1982,
Buku Referensi
Samuel Kotz, Norman L. Johnson, editors-in-chief
John Wiley & Sons, Inc., 1982
Buku Referensi
Samuel Kotz, Norman L. Johnson, editors-in-chief
John Wiley & Sons, Inc., 1982
Buku Referensi