Cryer, Jonathan, author
PWS-Kent, 1991
Buku Teks
Daniel Dolk, Janusz Granat, editors
[Springer, ], 2012
eBooks
Gallagher, Charles A.
McGraw-Hill International Book Company, 1980
Buku Teks
Johnson, Rodney D.
Prentice Hall of India, 1977
Buku Teks
Miswanto, author
Sekolah Tinggi Ilmu Ekonomi YKPN, 1995
Buku Teks