Yuliyani, R., Iswari, R. and Anggraito, Y. 2023. Development of STEM-Based Teaching Supplements Assisted by Gram Staining Practicum to Optimize Students’ Critical Thinking and Science Process Skills. Journal of Innovative Science Education. 12, 1 (Apr. 2023), 40-49. DOI:https://doi.org/10.15294/jise.v12i1.63947.