AMANIARSIH, Dwi Suci; ASRUL, Nurmahyuni; JULIANA, Juliana; GINTING, Erwin. THE EFFECTIVENESS OF USING THE DUOLINGGO APPLICATION IN IMPROVING STUDENTS’ MOTIVATION AND ENGLISH-SPEAKING SKILL AT UNIVERSITAS POTENSI UTAMA MEDAN. Pedagogi: Jurnal Ilmiah Pendidikan, [S. l.], v. 11, n. 1, p. 46–54, 2025. DOI: 10.47662/pedagogi.v11i1.933. Disponível em: http://siakad.univamedan.ac.id/ojs/index.php/pedagogi/article/view/933. Acesso em: 3 mar. 2025.