You can find a drawings references by going to Edit > Links. There is no way to find every drawing and assembly that references a part from the part's side. You would have to find the links from the drawings and assemblies.
other solution is with CAA, you can open each catdrawing, catproduct and catpart and check links... We had to check our full database for links between files... it was time consuming... glad we are going to 3DX so links will be manage in database and easier to check.
Eric N. indocti discant et ament meminisse periti