Andriani, N., Benni, B., Zulherman, Z., & Sudirman, S. (2019). Development of Physical and Earth and Space Science Content Problems Based on PISA in Class VIII Junior High School. Kasuari: Physics Education Journal (KPEJ), 1(2), 65–72. https://doi.org/10.30862/kpej.v1i2.30