http://e-repository.perpus.iainsalatiga.ac.id/14009
http://e-repository.perpus.iainsalatiga.ac.id/14162
http://e-repository.perpus.iainsalatiga.ac.id/14293
http://e-repository.perpus.iainsalatiga.ac.id/14427
http://e-repository.perpus.iainsalatiga.ac.id/14270