http://e-repository.perpus.iainsalatiga.ac.id/9186
http://e-repository.perpus.iainsalatiga.ac.id/9556
http://e-repository.perpus.iainsalatiga.ac.id/10450
http://e-repository.perpus.iainsalatiga.ac.id/10635
http://e-repository.perpus.iainsalatiga.ac.id/10288