http://e-repository.perpus.iainsalatiga.ac.id/8718
olah k2
http://e-repository.perpus.iainsalatiga.ac.id/7906
http://e-repository.perpus.iainsalatiga.ac.id/10617
http://e-repository.perpus.iainsalatiga.ac.id/9284
http://e-repository.perpus.iainsalatiga.ac.id/10094