http://e-repository.perpus.iainsalatiga.ac.id/18163
http://e-repository.perpus.iainsalatiga.ac.id/18498
http://e-repository.perpus.iainsalatiga.ac.id/18323
http://e-repository.perpus.iainsalatiga.ac.id/19356
http://e-repository.perpus.iainsalatiga.ac.id/18968
http://e-repository.perpus.iainsalatiga.ac.id/19056