Chaijalearn Y, Kaensongsai J, Singtale P, Ratchawet A. Borsang Umbrella Handicraft: A Science Learning Resource in Thailand. IJSET [internet]. 2022 Sep. 1 [cited 2026 Mar. 7];1(2):65-76. available from: https://so07.tci-thaijo.org/index.php/IJSET/article/view/1772