Synthesis and Characterization of Nano-crystaline CaFe2O4 via Solution Combustion Method from Solid Waste Egg Shells as Source of Calcium. (2017). International Journal of Engineering Research and Advanced Technology (ijerat) (E-ISSN 2454-6135) DOI: 10.31695 IJERAT, 3(1), 21-30. https://ijerat.com/index.php/ijerat/article/view/195