http://e-repository.perpus.iainsalatiga.ac.id/18467
http://e-repository.perpus.iainsalatiga.ac.id/19480
http://e-repository.perpus.iainsalatiga.ac.id/19926
http://e-repository.perpus.iainsalatiga.ac.id/19477
http://e-repository.perpus.iainsalatiga.ac.id/20060
http://e-repository.perpus.iainsalatiga.ac.id/20057