https://etd.repository.ugm.ac.id/penelitian/detail/134022000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/136212000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/136422000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/136532000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/136582000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/136602000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/136622000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/136632000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/136662000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/136712000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/136772000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/140682000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/154092000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/154342000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/154352000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/154362000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/154372000never1.0https://etd.repository.ugm.ac.id/penelitian/detail/154382000never1.0