McGraw-Hill concise encyclopedia of science & technology
Sybil P. Parker, editor in chief
McGraw-Hill, 1994
 Buku Referensi
McGraw-Hill concise encyclopedia of science & technology
Sybil P. Parker, editor in chief
McGraw-Hill, 1984
 Buku Referensi
Rourke's world of science encyclopedia vol. 9 : technology
Rourke Publishing LLC, 2009
 Buku Referensi
Science, technology and the future: Soviet scientists`s analysis of the problems of prospects for development of science and technology and their role in society
editors, E.P. Velikhov, J.M. Gvishiani, and S.R. Mikulinsky
Pergamon Press, 1980
 Buku Teks SO
Science, technology and the future: Soviet scientists`s analysis of the problems of prospects for development of science and technology and their role in society
editors, E.P. Velikhov, J.M. Gvishiani, and S.R. Mikulinsky
Pergamon Press, 1980
 Buku Teks SO