http://e-repository.perpus.iainsalatiga.ac.id/16391
http://e-repository.perpus.iainsalatiga.ac.id/16266
http://e-repository.perpus.iainsalatiga.ac.id/16194
http://e-repository.perpus.iainsalatiga.ac.id/15944
http://e-repository.perpus.iainsalatiga.ac.id/15961