Rujukan

WikiPedia: Natrium_karbonat http://infoscience.epfl.ch/record/82110/files/publ... http://www.ansac.com http://www.chemspider.com/Chemical-Structure.9916.... http://www.conservationsupportsystems.com/system/a... http://www.inclusive-science-engineering.com/sodiu... http://chemapps.stolaf.edu/jmol/jmol.php?model=%5B... http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=... http://pubchem.ncbi.nlm.nih.gov/summary/summary.cg... http://chem.sis.nlm.nih.gov/chemidplus/rn/497-19-8 http://minerals.usgs.gov/minerals/pubs/commodity/s...