พรหมบึงลำ ส.; KEERATICHAMROEN, W. A STUDY OF LEARNING ACHIEVEMENT AND PROBLEM SOLVING ABILITY OF GRADE 4 STUDENTS USING PROBLEM–BASED LEARNING WITH QUESTION TECHNIQUE. Research Community and Social Development Journal, Nakhon Ratchasima, Thailand, v. 15, n. 4, p. 246–259, 2021. DOI: 10.14456/nrru-rdi.2021.79. Disponível em: https://so04.tci-thaijo.org/index.php/NRRU/article/view/252376. Acesso em: 16 sep. 2026.