Dhanalaxmi, Revuri, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1977
UI - Tesis Membership
Dvid Rodin, editor
Blackwell Publishing, 2007
Buku Teks
Toffler, Alvin, author
Warner Books, 1994
Buku Teks
Lomax, Louis.E
Random House, 1967
Buku Teks
Thompson, William Fletcher, 1929-, author
Louisiana State University Pres, 1994
Buku Teks