1.
Hiranchiracheep S, Yamazaki AK, Naowanondha A. A Development and Comprehension of Pictograms for Educational Purposes. Ratchaphruek [internet]. 2018 Oct. 31 [cited 2026 Aug. 26];16(3):10-8. available from: https://so05.tci-thaijo.org/index.php/Ratchaphruekjournal/article/view/152859