Rifky, M.; Surya , J. F. D.; Hanafi , H.; Ibanez , M.; Kaab , M. F.; Sujito , S. THE EFFECT OF AI CHATBOTS (E.G CHATGPT) AS A PERSONAL GRAMMAR TUTOR ON GRAMMAR ACHIEVEMENT IN THE WRITING OF ENGLISH EDUCATION STUDENTS. Cendikia 2026, 4, 285-294.