https://etd.repository.ugm.ac.id/penelitian/detail/2711482026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2712942026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2717222026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2774512026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2800702026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2801162026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2807182026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2808672026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2821792026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2822192026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2823882026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2826172026never1.0