http://e-repository.perpus.iainsalatiga.ac.id/13196
http://e-repository.perpus.iainsalatiga.ac.id/11083
http://e-repository.perpus.iainsalatiga.ac.id/10783
http://e-repository.perpus.iainsalatiga.ac.id/13018
http://e-repository.perpus.iainsalatiga.ac.id/10510