http://e-repository.perpus.iainsalatiga.ac.id/14728
http://e-repository.perpus.iainsalatiga.ac.id/12024
http://e-repository.perpus.iainsalatiga.ac.id/11514
http://e-repository.perpus.iainsalatiga.ac.id/10386
http://e-repository.perpus.iainsalatiga.ac.id/8968