Kamutthapichai, Choowit, Chonchalita Kamutthapichai, Wiwat Taweesup, and Popphon Aiemsai. 2026. “Cultural Capital of Kamphaeng Phet World Heritage Site and the Development of Creative Souvenir”. Humanities and Social Sciences Nakhonsawan Rajabhat University Academic Journal 13 (1). Nakhon Sawan, Thailand:55-69. https://so05.tci-thaijo.org/index.php/hssnsru/article/view/285508.