จวนสูงเนิน อ., & P็HONNONG I. (2022). A STUDY OF LEARNING ACHIEVEMENT ON MATHEMATICS AND GROUP WORKING BEHAVIORS OF GRADE 5 STUDENTS USING COOPERATIVE LEARNING TEAM ACHIEVEMENT DIVISION TECHNIQUE WITH POLYA’ PROBLEM SOLVING PROCESS. Research Community and Social Development Journal, 16(3), 261–272. https://doi.org/10.14456/nrru-rdi.2022.60