http://e-repository.perpus.iainsalatiga.ac.id/18158
http://e-repository.perpus.iainsalatiga.ac.id/19169
http://e-repository.perpus.iainsalatiga.ac.id/19145
http://e-repository.perpus.iainsalatiga.ac.id/18620
http://e-repository.perpus.iainsalatiga.ac.id/18508
http://e-repository.perpus.iainsalatiga.ac.id/18780