พละโชติ ศิริพร, and เนาวนนท์ อดิศร. “A Study of English Listening and Speaking Abilities of 1st Graders Using Total Physical Response Method”. Ratchaphruek Journal 16, no. 3 (October 31, 2018): 81–89. accessed August 26, 2026. https://so05.tci-thaijo.org/index.php/Ratchaphruekjournal/article/view/153313.