Irawan, D., M. Nababan, R. Santosa, and Djatmika. “Translation Analysis of Expressive Speech Representing Politeness Strategy in Interrogation Speech Events in the Novel A Murder Is Announced”. Proceedings of International Conference on Islamic Civilization and Humanities, Vol. 3, June 2025, pp. 182-93, https://proceedings.uinsa.ac.id/index.php/iconfahum/article/view/3185.