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The scaling laws for vibration response of anti-symetrically laminated plates are derived byapplying the similitude transformation to the governing differential equations directly. With this approach,a closed-form solution of the governing equations is not required. This is a significant advantage over themethod employed by other researchers where similitude transformation is applied to the closed-formsolution. The scaling laws are tested by comparing the similitude fundamental frequencies to thetheoretical fundamental frequencies determined from the available closed-form solutions. In case ofcomplete similitude, similitude solutions from the scaling laws exactly agree with the theoretical solutions.Sometimes, it may not be feasible to select the model which obeys the similarity requirement completely,therefore partial similitude is theoretically investigated and approximate scaling laws are recomended.The distorted models in stacking sequences and laminated material properties demonstrate reasonableaccuracy. On the contrary, a model with distortion in fiber angle is not recommended. The derived scalinglaws are very useful to determine the vibration response of complex prototypes by performing theexperiment on a model with required similarities.