Synthesis and Characterization of Nano-crystaline CaFe2O4 via Solution Combustion Method from Solid Waste Egg Shells as Source of Calcium. International Journal of Engineering Research and Advanced Technology (ijerat) (E-ISSN 2454-6135) DOI: 10.31695/IJERAT, [S. l.], v. 3, n. 1, p. 21–30, 2017. Disponível em: https://ijerat.com/index.php/ijerat/article/view/195.. Acesso em: 18 may. 2024.