Ilham Ali, M., H. Efrando Pabur, S. Wardatul Jannah Husain, I. Ismail, Y. Anggraini H Katili, and G. Sukma Perdana. “TEXTBOOK ENGLISH FOR TOURISM”. Penerbit Tahta Media, Apr. 2025, https://tahtamedia.co.id/issj/article/view/1390.