Ijirana, Ijirana, and Sri Wahyuni. 2019. “The Chemistry Competency Achievement of SMA Negeri 7 Palu Students Using Predict, Observe, and Explain (POE) Learning Model”. Indonesian Journal on Learning and Advanced Education (IJOLAE), January, 9-14. https://doi.org/10.23917/ijolae.v1i1.7474.