Huda, Shamsul, Ari Eko Wardoyo, and Henny Wahyu Sulistyo. 2024. “Analyzing UI and UX of Verval PTK: Impact on Elementary School Data Precision”. Sinkron : Jurnal Dan Penelitian Teknik Informatika 8 (2):748-55. https://doi.org/10.33395/sinkron.v8i2.13572.