TRONGTORTAM, S.; SOPHATSATHIT, P.; CHANDRACHAI, A. An Interactive Multi-touch Teaching Innovation for Preschool Mathematical Skills. Applied Science and Engineering Progress, [S. l.], v. 5, n. 3, p. 19–25, 2013. Disponível em: https://ph02.tci-thaijo.org/index.php/ijast/article/view/67319. Acesso em: 18 sep. 2026.