GAMAL, G. A.; AL-MUFADI, F. A.; SAID, A. H. Effect of Iron Additives on the Microstructure of Hydroxyapatite. Engineering, Technology & Applied Science Research, Greece, v. 3, n. 6, p. 532–539, 2013. DOI: 10.48084/etasr.369. Disponível em: https://www.etasr.com/index.php/ETASR/article/view/369. Acesso em: 29 jan. 2022.