https://etd.repository.ugm.ac.id/penelitian/detail/588822013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/590372013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/596792013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/597842013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/598662013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/598932013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/598942013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/605922013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/607182013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/607892013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/607992013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/609472013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/612442013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/633462013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/634262013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/635172013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/636912013never1.0https://etd.repository.ugm.ac.id/penelitian/detail/638102013never1.0