SHINTA SHOFIA ANANDA; ARSO SETIAJI; INDRI KUSTANTINAH. THE ROLE OF DUOLINGO APPLICATION TO IMPROVE STUDENTS’ VOCABULARY MASTERY AT JUNIOR HIGH SCHOOL IN ACADEMIC YEAR 2023/2024. Didaktik : Jurnal Ilmiah PGSD STKIP Subang, v. 9, n. 5, p. 1124 - 1133, 16 Nov. 2023.