Br Purba, Roh, 		Napitupulu, Fenty, AND 		Sidabutar, Usman.
" IMPROVING STUDENT'S VOCABULARY MASTERY BY USING THE FLY SWATTER GAME IN SEVENTH GRADE OF SMP N 31 MEDAN" <em>Jurnal Teknologi Mesin UDA</em> [Online], Volume 2 Number 2 (30 December 2024)