Donaldson, Loraine
N.Y. Praeger , 1966
Buku Teks
Springer, 2014
Buku Teks
Griffin, Keith B., author
Addison-Wesley, 1970
Buku Teks
Tinbergen, Jan, 1903-, author
McGraw-Hill, 1967
Buku Teks
Lewis, William Arthur, 1915-, author
Harper & Row, 1966
Buku Teks