http://e-repository.perpus.iainsalatiga.ac.id/17916
http://e-repository.perpus.iainsalatiga.ac.id/18964
http://e-repository.perpus.iainsalatiga.ac.id/17702
http://e-repository.perpus.iainsalatiga.ac.id/17932
http://e-repository.perpus.iainsalatiga.ac.id/19081