https://etd.repository.ugm.ac.id/penelitian/detail/49272000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/49322000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/49802000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/50712000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/51302000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/52632000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/52642000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/53292000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/53302000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/53412000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/54062000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/54072000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/54082000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/55962000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/58842000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/58852000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/60742000never1.0