1. Jayathialakan, K., Sultana, K., Radhakrishna, K., Bawa, A.S.: Utilization of byproducts and waste materials from meat, poultry and fish processing industries: a review. J. Food Sci. Technol. 49(3), 278–293 (2010)
2. Ózgünay, H., Çolak, S., Multu, M.M., Akyuz, F.: Characterization of leather industry wastes. Polish J. of Environ. Stud. 16(6), 867–873 (2007)
3. Buljan, J., Reich, G., Ludvik, J.: Mass balance in leather processing. United nations industrial development organization (2000)
http://leatherpanel.org/sites/default/files/publicationsattachments/mass_balance.pdf
4. Sundar, V.J., Gnanamani, A., Muralidharan, C., Chandrababu, N.K., Mandal, A. B.: Recovery and utilization of proteinous waste of leather making: a review. Rev Environ. Sci Biotechnol. 10, 151–163 (2011)
5. Kumaraguru, S., Sastry, T.P., Rose, C.: Hydrolysis of tannery fleshings using pancreatic enzymes: a biotechnological tool for solid waste management. J. Am. Leather Chem. 93, 32–39 (1998)