http://e-repository.perpus.iainsalatiga.ac.id/13432
http://e-repository.perpus.iainsalatiga.ac.id/13276
http://e-repository.perpus.iainsalatiga.ac.id/13426
http://e-repository.perpus.iainsalatiga.ac.id/13760
http://e-repository.perpus.iainsalatiga.ac.id/13677