Lukman Fahmi and Amiatun Nuryana (2023) “ The Problem of Vocabulary in Indonesian and Malaysian from Malaysia Students at UIN Sunan Ampel Surabaya”, SULUK: Jurnal Bahasa, Sastra, dan Budaya, 5(2), pp. 212–222. doi: 10.15642/suluk.2023.5.2.212-222.