http://e-repository.perpus.iainsalatiga.ac.id/13609
http://e-repository.perpus.iainsalatiga.ac.id/11302
http://e-repository.perpus.iainsalatiga.ac.id/14734
http://e-repository.perpus.iainsalatiga.ac.id/14858
http://e-repository.perpus.iainsalatiga.ac.id/14725