พินยงค์ ศ. CONSERVATION OF ETHNIC IDENTITY FOCUSING ON HISTORICAL SETTLEMENT OF LAO WIANG GROUP IN PLAPPHLA CHAI SUB-DISTRICT U THONG DISTRICT SUPHANBURI PROVINCE. JSBA [internet]. 2020 Oct. 15 [cited 2026 Mar. 6];5(10):430-48. available from: https://so04.tci-thaijo.org/index.php/JSBA/article/view/244367