http://e-repository.perpus.iainsalatiga.ac.id/14674
http://e-repository.perpus.iainsalatiga.ac.id/14564
http://e-repository.perpus.iainsalatiga.ac.id/14633
http://e-repository.perpus.iainsalatiga.ac.id/13930
http://e-repository.perpus.iainsalatiga.ac.id/14473