http://e-repository.perpus.iainsalatiga.ac.id/12105
http://e-repository.perpus.iainsalatiga.ac.id/12102
http://e-repository.perpus.iainsalatiga.ac.id/11710
http://e-repository.perpus.iainsalatiga.ac.id/11657
http://e-repository.perpus.iainsalatiga.ac.id/11994
http://e-repository.perpus.iainsalatiga.ac.id/11888