http://e-repository.perpus.iainsalatiga.ac.id/8866
http://e-repository.perpus.iainsalatiga.ac.id/10055
http://e-repository.perpus.iainsalatiga.ac.id/10052
http://e-repository.perpus.iainsalatiga.ac.id/9418
http://e-repository.perpus.iainsalatiga.ac.id/10584