[prepared by the United Nations Industrial Development Officer under the general direction of Torben M. Roepstorff, in collaboration with UNIDO, consultant, Javed Ansari]
Buku Teks SO
Haq, Mahbub ul, 1934-1998
Oxford University Press, 1963
Buku Teks
Editor: Ralph K. Nair
American Council on Industrial Arts Teacher Education, 1959
Buku Teks SO
edited by David F. Walker
John Wiley & Sons, 1980
Buku Teks SO
Stephens, Ian
Ernest Benn, 1963
Buku Teks SO