Rahmawati D, Istiara F, Febriyanti. IMPROVING STUDENT’S VOCABULARY MASTERY THROUGH GROUP CHAT DISCUSSION ON WHATSAPP AT THE TENTH GRADE STUDENTS OF SMA NEGERI 16 BANDAR LAMPUNG IN THE ACADEMIC YEAR 2022/2023. jees [Internet]. 2022 Dec. 9 [cited 2025 Jan. 9];4(2):1-8. Available from: https://stkippgribl.ac.id/eskripsi/index.php/jees/article/view/392