A. M. Abdulamajeed and R. H. Hasan, “Effect of Implant Number, Distribution with Different Attachments on the Retention and Stability of Implant Supported Overdenture”, JARMHS, vol. 3, no. 9, pp. 07–16, Sep. 2017, doi: 10.53555/nnmhs.v3i9.616.