Haq, Mahbub ul, 1934-1998
Oxford University Press, 1963
Buku Teks
edited by David F. Walker
John Wiley & Sons, 1980
Buku Teks
Editor: Ralph K. Nair
American Council on Industrial Arts Teacher Education, 1959
Buku Teks
Stephens, Ian
Ernest Benn, 1963
Buku Teks
Choffray, Jean-Marie
John Wiley, 1980
Buku Teks