Hannora, A., S. Aknazarov, Z. Mansurov, N. Mofa, and A. Mamaeva. “HYDROXYAPATITE COATING BY MECHANICAL ALLOYING METHOD”. Recent Contributions to Physics, vol. 2009, no. 2, Nov. 2009, pp. 33-42, https://bph.kaznu.kz/index.php/zhuzhu/article/view/189.