Ayadi, R., Mohamed Boujelbene, and T. Mhiri. 2013. “X-Ray Structure Refinement and Vibrational Spectroscopy of Ca8Gd2 (PO4)6 O2”. JOURNAL OF ADVANCES IN CHEMISTRY 12 (5):719-26. https://doi.org/10.24297/jac.v12i5.5529.