http://e-repository.perpus.iainsalatiga.ac.id/10895
http://e-repository.perpus.iainsalatiga.ac.id/11054
http://e-repository.perpus.iainsalatiga.ac.id/10777
http://e-repository.perpus.iainsalatiga.ac.id/10775
http://e-repository.perpus.iainsalatiga.ac.id/10774