http://e-repository.perpus.iainsalatiga.ac.id/13276
http://e-repository.perpus.iainsalatiga.ac.id/13432
http://e-repository.perpus.iainsalatiga.ac.id/13568
http://e-repository.perpus.iainsalatiga.ac.id/13069
http://e-repository.perpus.iainsalatiga.ac.id/13109