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
Cambridge University Press, 1938
 Buku Teks SO
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
Enzyme handbook 3
Schomburg, Dietmar, editor; Salzmann, Margit, editor
Springer-Verlag, 1990
 Buku Referensi