[1]
Suci Oktarini, D. 2023. The Effect Of Using Duolingo To Improve Students’ Vocabulary Mastery At The Eleventh Grade Students Of SMAN 5 Pinggir. Jolly Journal of English Education. 1, 2 (Dec. 2023), 162–176. DOI:https://doi.org/10.63435/jjee.v1i2.61.