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In this work, we introduce dual Rickart (Baer) modules via the con-cept of preradicals. It is shown that W is -d Rickart if and only ifW = (W) L such that (W) is a dual Rickart module. We provethat a module W is -d Baer if and only if W is -d Rickart and Wsatis es strongly summand sum property for d.s. submodules of Wcontained in (W). Via (RR), we characterize right -d Baer rings.