https://etd.repository.ugm.ac.id/penelitian/detail/370662008never1.0https://etd.repository.ugm.ac.id/penelitian/detail/370672008never1.0https://etd.repository.ugm.ac.id/penelitian/detail/370682008never1.0https://etd.repository.ugm.ac.id/penelitian/detail/370692008never1.0https://etd.repository.ugm.ac.id/penelitian/detail/370702008never1.0https://etd.repository.ugm.ac.id/penelitian/detail/370712008never1.0https://etd.repository.ugm.ac.id/penelitian/detail/370722008never1.0https://etd.repository.ugm.ac.id/penelitian/detail/370732008never1.0https://etd.repository.ugm.ac.id/penelitian/detail/370742008never1.0https://etd.repository.ugm.ac.id/penelitian/detail/370752008never1.0https://etd.repository.ugm.ac.id/penelitian/detail/370762008never1.0https://etd.repository.ugm.ac.id/penelitian/detail/370772008never1.0https://etd.repository.ugm.ac.id/penelitian/detail/370782008never1.0https://etd.repository.ugm.ac.id/penelitian/detail/370792008never1.0https://etd.repository.ugm.ac.id/penelitian/detail/370802008never1.0https://etd.repository.ugm.ac.id/penelitian/detail/370812008never1.0https://etd.repository.ugm.ac.id/penelitian/detail/370822008never1.0