Harper & Row , 1981
Buku Teks
Robinson, Matthew B., author
Pearson/Prentice Hall, 2004
Buku Teks
Bertalanffy, Ludwig von
Penguin Books Ltd., 1968
Buku Teks
Iordache, Octavian, author
Springer, 2012
eBooks
edited by J.M. Gvishiani
Pergamon Press, 1984
Buku Teks