Encyclopedia of sports science; Volume 1
edited by John Zumerchik
MacMillan Library Reference USA, 1997
 Buku Referensi
Encyclopedia of the history of Arabic science : volume 2
edited by Roshdi Rashed
Routledge, 1996
 Buku Referensi
The new illustrated science and invention encyclopedia : the new how it works : volume 2
H.S. Stuttman, 1989
 Buku Referensi
McGraw-Hill encyclopedia of science and technology : volume 2 BAB-CET
McGraw-Hill, 1960; 1966
 Buku Referensi
Encyclopedia of sociology; Volume 2
Edgar F. Borgatta, editor-in-chief, Marie L. Borgatta, managing editor
Macmillan, 1992
 Buku Referensi