http://e-repository.perpus.iainsalatiga.ac.id/12627
http://e-repository.perpus.iainsalatiga.ac.id/12923
http://e-repository.perpus.iainsalatiga.ac.id/12354
http://e-repository.perpus.iainsalatiga.ac.id/12910
http://e-repository.perpus.iainsalatiga.ac.id/12819