1.
Suri D, Rahmawati WT, Lubis SI. IMPROVING STUDENTS’ VOCABULARY MASTERY BY USING DUOLINGO OF THE EIGHTH GRADE AT SMPS BUDI UTOMO . J. Pedagogi [Internet]. 29 Januari 2024 [dikutip 18 November 2024];10(1):102-10. Tersedia pada: http://siakad.univamedan.ac.id/ojs/index.php/pedagogi/article/view/675