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| The ontology approach for information retrieval in learning documents | Q3 Journal | 1 | 3 | Journal of Theoretical and Applied Information Technology | 2019 | 0 |
| A study: Query expansion methods in information retrieval | Q4 Journal | 1 | 3 | Journal of Physics: Conference Series | 2019 | 4 |
| Ontology model for tourism information in Banyumas | Q4 Journal | 1 | 2 | AIP Conference Proceedings | 2019 | 0 |