1. Determinação do teor de sólidos totais, fixos e voláteis em banhos de curtimento. NBR 14550;ABNT,2000
2. Structure and properties of keratin/PEO blend nanofibres;Aluigi;Eur. Polym. J.,2008
3. Associated use of enzymes and hydrogen peroxide for hair removal of cowhides;Andrioli;JALCA,2014
4. Standart Test Method for Nitrogen Content (Kjeldahl) and Hide Substance Content of Leather. D2868;ASTM,2010
5. Oxidative unhairing with hydrogen peroxide: development of an industrial scale process for high quality upper leather;Bronco;JALCA,2005