สิทธิสระ สุรวดี. “Using Semantic Mapping to Develop English Reading Skill of Upper Primary School Students, Wattan-En School, Phra Nakhon Si Ayutthaya”. RMUTSB ACADEMIC JOURNAL (HUMANITIES AND SOCIAL SCIENCES) 4, no. 2 (December 23, 2019): 209–219. Accessed May 6, 2024. https://so05.tci-thaijo.org/index.php/rmutsb-hs/article/view/170798.