RUNMAI, Y.; KEERATICHAMROEN, W. A Study of Learning Achievement on Addition and Subtraction of Numbers up to 20 Learning Unit and Group Working Behaviors of Grade 1 Students using Team-Games-Tournament with Bar Model. Ratchaphruek Journal, ์์Nakhon Ratchasima, Thailand, v. 22, n. 1, p. 129–143, 2024. DOI: 10.14456/rpjnrru.2024.9. Disponível em: https://so05.tci-thaijo.org/index.php/Ratchaphruekjournal/article/view/269603. Acesso em: 17 sep. 2026.