http://e-repository.perpus.iainsalatiga.ac.id/18799
http://e-repository.perpus.iainsalatiga.ac.id/18835
http://e-repository.perpus.iainsalatiga.ac.id/19310
http://e-repository.perpus.iainsalatiga.ac.id/18354
http://e-repository.perpus.iainsalatiga.ac.id/19436
http://e-repository.perpus.iainsalatiga.ac.id/19034