Ratu Shania Nazjwa Salsabilla, Khairunnisa, Resti Amelinda Iranti Lukman, Abdul Syahid. The Effect Of Using Duolingo On English Writing For EFL University Students. PESHUM [Internet]. 2024 Dec. 7 [cited 2026 Jun. 2];4(1):238-44. Available from: https://www.ulilalbabinstitute.id/index.php/PESHUM/article/view/6662