Manullang U, Lumban Raja V, Sari ASP. IMPROVING STUDENTS’ VOCABULARY MASTERY THROUGH CROSSWORD PUZZLE GAME TO THE EIGHTH GRADE STUDENTS OF SMP SWASTA DHARMA BAKTI MEDAN. KAIROS [Internet]. 2020Jun.16 [cited 2024Jul.22];2(2):128-42. Available from: https://ejournal.ust.ac.id/index.php/KAIROS/article/view/729