select distinct paper from paper_master,printsize_master,np_master,stamps where stamps.paper_code=paper_master.paper_code and paper_master.paper<>' ' and np_master.np_code=stamps.np_code and np_master.np=\'P\' and printsize_master.printsize_code=stamps.printsize_code and printsize_master.printsize=\'4.4 x 3.6\' order by paper