https://etd.repository.ugm.ac.id/penelitian/detail/2729482026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2730482026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2733172026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2734502026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2734752026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2736212026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2736612026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2738382026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2743432026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2743732026never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2744102026never1.0