Nuril Auliya, N. A., A. N. Johan, and S. Widodo. “An Analysis of Pronunciation Errors of English Consonant Sounds /tʃ/ and /dʒ/ By First-Year English Department Students”. Ranah Research : Journal of Multidisciplinary Research and Development, Vol. 8, no. 4, July 2026, pp. 2462-70, doi:10.38035/rrj.v8i4.2161.