https://etd.repository.ugm.ac.id/penelitian/detail/1965912021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1967302021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1967962021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1968142021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1968512021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1971102021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1985382021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1997642021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2037112021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2060722021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2060852021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2069622021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2070132021never1.0