AdhaA. M., and MuharamA. “Student Response by Applying A Problem Based Learning Model to Students of SDN Sukapura 01 in The Sub-Theme of My Nation’s Cultural Diversity”. International Conference on Elementary Education, Vol. 3, no. 1, Apr. 2021, pp. 31-37, http://proceedings.upi.edu/index.php/icee/article/view/1439.