Filah AN, . D, . K. The Analysis of Students’ Critical Thinking Skills in Solving the Generalization Problem of Mathematics Series. Int. j. soc. sci. humanit. invent. [Internet]. 2018 Jan. 30 [cited 2024 Apr. 16];5(1):4314-21. Available from: http://valleyinternational.net/index.php/theijsshi/article/view/1055