Analisis Variasi Leksikal Bahasa Batak Toba di Kecamatan Siantar Timur: Kajian Dialektologi: A Dialectological Study of Lexical Variation in the Toba Batak Language in Siantar Timur District Indah Destriani Samosir, Dwi Widayati, Rosliana Lubis Jurnal Bastra (Bahasa dan Sastra) Vol. 11 No. 3 2026 DOI 10.36709/bastra.v11i3.2698