Zetriuslita, ., and J. Wahyudin. “MATHEMATICAL COMMUNICATION ABILITY AND CURIOSITY ATTITUDE THROUGH PROBLEM BASED LEARNING AND COGNITIVE CONFLICT STRATEGY BASED ON ACADEMIC LEVEL: A STUDY IN NUMBER THEORY”. PEOPLE: International Journal of Social Sciences, vol. 4, no. 2, Aug. 2018, pp. 726-42, doi:10.20319/pijss.2018.42.726742.