http://e-repository.perpus.iainsalatiga.ac.id/19549
http://e-repository.perpus.iainsalatiga.ac.id/19939
http://e-repository.perpus.iainsalatiga.ac.id/19517
http://e-repository.perpus.iainsalatiga.ac.id/19504
http://e-repository.perpus.iainsalatiga.ac.id/20065