http://e-repository.perpus.iainsalatiga.ac.id/18016
http://e-repository.perpus.iainsalatiga.ac.id/18409
http://e-repository.perpus.iainsalatiga.ac.id/18429
http://e-repository.perpus.iainsalatiga.ac.id/17635
http://e-repository.perpus.iainsalatiga.ac.id/17544
http://e-repository.perpus.iainsalatiga.ac.id/17338