http://e-repository.perpus.iainsalatiga.ac.id/15931
http://e-repository.perpus.iainsalatiga.ac.id/15911
http://e-repository.perpus.iainsalatiga.ac.id/12276
http://e-repository.perpus.iainsalatiga.ac.id/17397
http://e-repository.perpus.iainsalatiga.ac.id/17445
http://e-repository.perpus.iainsalatiga.ac.id/17508