http://e-repository.perpus.iainsalatiga.ac.id/13193
http://e-repository.perpus.iainsalatiga.ac.id/13175
http://e-repository.perpus.iainsalatiga.ac.id/13273
http://e-repository.perpus.iainsalatiga.ac.id/12539
http://e-repository.perpus.iainsalatiga.ac.id/12910