Meliana Br.Siahaan, Tiarma Intan Marpaung, David Togi Hutahaean. Students’ Perception Towards Orai As Learning Media Of Speaking Skill At Grade Eight Of SMP Negeri 1 Pematang Siantar . JIPSI [Internet]. 2023 Nov. 12 [cited 2026 Apr. 17];2(4):414-27. Available from: https://putrapublisher.org/ojs/index.php/jipsi/article/view/449