สิทธิสระ ส. Using semantic mapping to develop English reading skill of upper primary school students, Wattan-En School, Phra Nakhon Si Ayutthaya. RMUTSB-HUMAN [internet]. 2019 Dec. 23 [cited 2026 Sep. 10];4(2):209-1. available from: https://so05.tci-thaijo.org/index.php/rmutsb-hs/article/view/170798