Ratih, Elisa, and Dita Lupita Sari. “Exploring English Communication Needs in the Heavy Equipment Industry: Insights from Industry Practitioners”. Celtic : A Journal of Culture, English Language Teaching, Literature and Linguistics 12, no. 2 (December 15, 2025): 1072–1089. Accessed June 6, 2026. https://ejournal.umm.ac.id/index.php/celtic/article/view/42210.