THAJEEL, Khalid M. Synthesis of calcium hydroxyapatite powder from hen’s eggshell. Iraqi Journal of Physics, Baghdad, Iraq., v. 9, n. 16, p. 24–28, 2011. Disponível em: https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/783. Acesso em: 29 mar. 2025.