Lobo, V.M.M.
Handbook of electrolyte solutions : part A
Elsevier, 1989
 Buku Referensi
Carrington, C. E.
A history of England part 3, 1714-1935
At The University Press, 1938
 Buku Teks
Handbook of detergents; Part E : applications
editor-in-chief, Uri Zoller
CRC Pres, 2009
 Buku Referensi
Lobo, V.M.M.
Handbook of electrolyte solutions : part B
Elsevier, 1989
 Buku Referensi
Schomburg, Dietmar
Enzyme handbook 3
Springer-Verlag, 1990
 Buku Referensi