C. KOLIOPOULOS, TELEMACHUS, and M.D. GEORGIA KOLIOPOULOU. 2010. “Evaluation of Iso-Butyric Acid and Acetic Acid in Landfill Leachate Emissions-Mid Auchencarroch Experimental Design”. Asian Journal of Chemistry 20 (2):1153-62. https://asianpubs.org/index.php/ajchem/article/view/12498.