c.1,2,3,4 olah
http://e-repository.perpus.iainsalatiga.ac.id/17392
http://e-repository.perpus.iainsalatiga.ac.id/17792
http://e-repository.perpus.iainsalatiga.ac.id/17666
http://e-repository.perpus.iainsalatiga.ac.id/14097
http://e-repository.perpus.iainsalatiga.ac.id/13644
http://e-repository.perpus.iainsalatiga.ac.id/13642