http://e-repository.perpus.iainsalatiga.ac.id/13267
http://e-repository.perpus.iainsalatiga.ac.id/13184
http://e-repository.perpus.iainsalatiga.ac.id/13101
http://e-repository.perpus.iainsalatiga.ac.id/13223
http://e-repository.perpus.iainsalatiga.ac.id/12261