RAMLI, P. M. D. Z. Sejarah, perkembangan ekonomi dan hubungan antarabangsa Kedah Tua dari kurun ke-2 hingga ke-14 Masihi: History, economic development and international relations of Kedah Tua from the 2nd to 14th century AD. International Journal of Interdisciplinary and Strategic Studies, [S. l.], v. 1, n. 1, p. 58-87, 2020. DOI: 10.47548/ijistra.2020.26. Disponível em: https://ijistra.com/journal/article/view/26. Acesso em: 14 jan. 2026.