KASSEM, Sameh Taha; EL-SHEMY, Khaled Aly. Extracting chromium-free protein hydrolysate from leather tanning wastes. International Journal of Environment, Agriculture and Biotechnology, [S. l.], v. 8, n. 6, 2023. Disponível em: https://i.agriculturejournals.org/index.php/ijeab/article/view/89.. Acesso em: 7 jul. 2024.