https://etd.repository.ugm.ac.id/penelitian/detail/1945582021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1966062021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1977542021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1987242021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1992052021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1993742021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2029132021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2033912021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2035002021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2047172021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2064882021never1.0https://etd.repository.ugm.ac.id/penelitian/detail/2096382021never1.0