Raddina Aprilia Putri, Endang Susantini, and Titik Taufikurohmah. “The Results Presentation of The Test Plants As A Natural Indicator of The Test Compounds of The Acid-Base Balance In the Teaching Materials of The Atlas to Train Scientific Reasoning Students”. IJORER : International Journal of Recent Educational Research 2, no. 3 (May 31, 2021): 354-364. Accessed August 3, 2025. https://journal.ia-education.com/index.php/ijorer/article/view/116.