https://etd.repository.ugm.ac.id/penelitian/detail/1080962017never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1104012017never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1109962017never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1112412017never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1127282017never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1149132017never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1153452017never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1158332017never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1164012017never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1291152017never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1297622017never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1300912017never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1304682017never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1307722017never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1325732017never1.0https://etd.repository.ugm.ac.id/penelitian/detail/1539722017never1.0