Unnikrishnan, VRao, M B2014-04-182014-04-181904J Food Sci&Tech. 14(4), 1977. p.164-169http://krishikosh.egranth.ac.in/handle/1/57751enghee, copper, acidity, iron, livestock, organic acids, sampling, inorganic compounds, butter, economic systemsCopper and iron in ghee and their influence on oxidative deteriorationArticle