c.1,2,3,4 olah
http://e-repository.perpus.iainsalatiga.ac.id/14962
http://e-repository.perpus.iainsalatiga.ac.id/14023
http://e-repository.perpus.iainsalatiga.ac.id/13809
http://e-repository.perpus.iainsalatiga.ac.id/12261
http://e-repository.perpus.iainsalatiga.ac.id/10980