http://e-repository.perpus.iainsalatiga.ac.id/10290/
http://e-repository.perpus.iainsalatiga.ac.id/11059
http://e-repository.perpus.iainsalatiga.ac.id/10856
http://e-repository.perpus.iainsalatiga.ac.id/11241
http://e-repository.perpus.iainsalatiga.ac.id/11873
http://e-repository.perpus.iainsalatiga.ac.id/12048
http://e-repository.perpus.iainsalatiga.ac.id/12190
http://e-repository.perpus.iainsalatiga.ac.id/12288