http://e-repository.perpus.iainsalatiga.ac.id/17542
http://e-repository.perpus.iainsalatiga.ac.id/17385
http://e-repository.perpus.iainsalatiga.ac.id/17663
http://e-repository.perpus.iainsalatiga.ac.id/19160
http://e-repository.perpus.iainsalatiga.ac.id/19412
http://e-repository.perpus.iainsalatiga.ac.id/19156