Rani Wulansari Ariana, and Fajar Sidik. “KEIGO PADA KORESPONDENSI BISNIS BAHASA JEPANG”. Jurnal Sastra - Studi Ilmiah Sastra 15, no. 1 (June 30, 2025): 32-43. Accessed February 27, 2026. http://45.118.112.109/ojspasim/index.php/sastra/article/view/524.