http://e-repository.perpus.iainsalatiga.ac.id/11989
http://e-repository.perpus.iainsalatiga.ac.id/12018
http://e-repository.perpus.iainsalatiga.ac.id/12017
http://e-repository.perpus.iainsalatiga.ac.id/12202
http://e-repository.perpus.iainsalatiga.ac.id/12455