[1]
SyahbirinG., DarwisA. A., SuryaniA., and SyafiiW., “The Influence Of Reactant Ratio (Eupcalyptus Lignin – Sodium Bisulfite) And Initial Ph Towards Characteristcs Of Sodium Lignosulfonate”, J.Tek.Ind.Pert., vol. 19, no. 2, May 2010.