Kusuma, Jaka Wijaya, Rochmad Rochmad, Isnarto Isnarto, and Hamidah Hamidah. 2021. “CONSTRUCTIVISM FROM PHILOSOPHY TO MATHEMATICS LEARNING”. International Journal of Economy, Education and Entrepreneurship (IJE3) 1 (2):104-11. https://doi.org/10.53067/ije3.v1i2.16.