Supriatnaningsih, R., L. Nurjaleka, S. Nurhayati, D. Yani, and Y. Windarti. “Probing Socio-Pragmatic Skills of L2 Learners of Indonesian on Japanese Politeness”. Register Journal, vol. 17, no. 1, Mar. 2024, https://ejournal.uinsalatiga.ac.id/index.php/register/article/view/868.