Hongsombud, S. and Hongsombud, S. (2023) “Product Management of Local Souvenirs for Tourism in Suphanburi Province”, Journal of Roi Et Rajabhat University, 17(2), pp. 150–166. available at: https://so03.tci-thaijo.org/index.php/reru/article/view/259628 (accessed: 12 September 2026).