http://e-repository.perpus.iainsalatiga.ac.id/14420
http://e-repository.perpus.iainsalatiga.ac.id/14382
http://e-repository.perpus.iainsalatiga.ac.id/14238
http://e-repository.perpus.iainsalatiga.ac.id/14025
http://e-repository.perpus.iainsalatiga.ac.id/14737