Syafrayani PR, Hatta TA. Improving EFL Students’ English Speaking Skills at Universitas Muhammadiyah Sumatera Utara through the Cake Application. Altafani [Internet]. 25 September 2024 [dikutip 14 November 2026];1(2). Tersedia pada: https://jurnal2.umsu.ac.id/index.php/altafani/article/view/70