S. Al-Mukhtar, R. “Effect of Feed Concentration on the Production of Pregelatinized Starch in a Double Drum Dryer”. Iraqi Journal of Chemical and Petroleum Engineering, Vol. 8, no. 4, Dec. 2007, pp. 13-17, https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/491.