PURBA, Christian Neni; HERMAN. AN ANALYSIS OF STUDENTS’ DIFFICULTIES IN USING ENGLISH INTONATION AT GRADE EIGHT OF SMP NEGERI 2 PEMATANGSIANTAR. Wiralodra English Journal, [S. l.], v. 4, n. 1, p. 50–64, 2020. DOI: 10.31943/wej.v4i1.76. Disponível em: https://wej.unwir.ac.id/index.php/wej/article/view/76. Acesso em: 23 feb. 2026.