https://etd.repository.ugm.ac.id/penelitian/detail/2479542025never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2552302025never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2555722025never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2558882025never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2560242025never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2560712025never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2560762025never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2560812025never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2560832025never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2560852025never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2560862025never1.0