http://e-repository.perpus.iainsalatiga.ac.id/18124
http://e-repository.perpus.iainsalatiga.ac.id/18274
http://e-repository.perpus.iainsalatiga.ac.id/19016
http://e-repository.perpus.iainsalatiga.ac.id/19624
http://e-repository.perpus.iainsalatiga.ac.id/19929
http://e-repository.perpus.iainsalatiga.ac.id/19109