Ari Ezra Waldman, author
Cambridge University Press, 2018
eBooks
Niblett, G.B.F., author
OECD, 1971
Buku Teks
Freeman, Lee, author
Information Science Publishing, 2005
Buku Teks
Rosenberg, Jerry
Ramdom House, 1969
Buku Teks
David A. Elder, author
Thomson, 2002
Buku Teks