The Sago Trade Dispute and Judicial Process in the Riau Lingga Kingdom: A Philological Analysis of Manuscript Letters from 1899-1900. JPHR [Internet]. 2025 Apr. 26 [cited 2026 Jul. 13];2(2):110-28. Available from: https://journals.regalia-institute.com/index.php/JPHR/article/view/98