http://e-repository.perpus.iainsalatiga.ac.id/18276
http://e-repository.perpus.iainsalatiga.ac.id/18575
http://e-repository.perpus.iainsalatiga.ac.id/18113
http://e-repository.perpus.iainsalatiga.ac.id/19312
http://e-repository.perpus.iainsalatiga.ac.id/19134
http://e-repository.perpus.iainsalatiga.ac.id/19016