“Peningkatan Kemampuan Berbicara Siswa Kelas X SLB Negeri Dolok Sanggul Dengan Penggunaan Media Gambar Berseri: Improving The Speaking Ability Of Grade X Students Of Dolok Sanggul State Special School With The Use Of Serialized Picture Media”. Boraspati Journal: Journal of Bilingualism, Organization, Research, Articles, Studies in Pedagogy, Anthropology, Theory, and Indigenous Cultures 1, no. 2 (August 19, 2025): 103–111. Accessed October 10, 2026. https://journal.batakstorypedia.com/index.php/boraspatijournal/article/view/10.