Gaya APA
ULLMANN`S, . (1988).
Encyclopedia Of Industrial Chemistry Vol B3 Unit Operation 2 Ullman's (-).
New York:
VCH.
Gaya MLA
ULLMANN`S, .
"Encyclopedia Of Industrial Chemistry Vol B3 Unit Operation 2 Ullman's".
-
New York:
VCH,
1988.
FAKULTAS TEKNIK.