Nurul Adha, G. ., Rita, F., & Mashuri, M. (2025). THE USE OF U-DICTIONARY APPLICATION TO IMPROVE VOCABULARY MASTERY OF THE EIGHTH GRADE STUDENTS OF SMP NEGERI 17 PALU . E-Journal of ELTS (English Language Teaching Society), 12(3), 867-872. https://doi.org/10.22487/elts.v12i3.4438