SIMANGUNSONG, E. H. .; PASARIBU, A. N. .; SEMBIRING, R. A. . Directive and Commissive Speech in Roald Dahl Novel: The Umbrella Man. Jurnal Pendidikan dan Konseling (JPDK), [S. l.], v. 4, n. 5, p. 4265–4276, 2022. DOI: 10.31004/jpdk.v4i5.7295. Disponível em: http://journal.universitaspahlawan.ac.id/index.php/jpdk/article/view/7295. Acesso em: 1 jul. 2024.