Rodr?guez-Muela, C., D?az, D., Salvador, F., Ruiz, O., Arzola, C., Flores, A., La O, O., & El?as, A. (2010). Effect of the level of urea and soybean paste on the concentration of proteins during the solid state fermentation of wasted apple (Malus domestica). Cuban Journal of Agricultural Science, 44(1). Retrieved from https://www.cjascience.com/index.php/CJAS/article/view/286