Ashmarita (2022) “Orang Batak Mempertahankan Identitas Etnisnya”, Indonesian Annual Conference Series, (Proceedings of IACS-CSPC 2022), pp. 43–46. Available at: https://ojs.literacyinstitute.org/index.php/iacseries/article/view/577 (Accessed: 17 July 2026).