Muharom, S., Sudarmin, S. and Wijayati, N. 2018. Sintesis Natrium Lignosulfonat Berbasis Lignin Pelepah Salak Pondoh (Salacca zalacca (Gaertner) Voss). Indonesian Journal of Chemical Science. 7, 3 (Oct. 2018), 270-276. DOI:https://doi.org/10.15294/ijcs.v7i3.25883.