http://e-repository.perpus.iainsalatiga.ac.id/8443
http://e-repository.perpus.iainsalatiga.ac.id/10906
http://e-repository.perpus.iainsalatiga.ac.id/11619
http://e-repository.perpus.iainsalatiga.ac.id/10594
http://e-repository.perpus.iainsalatiga.ac.id/12221