Firdaus, T., S. A. Sholeha, M. Jannah, and A. R. Setiawan. “Comparison of ChatGPT and Gemini AI in Answering Higher-Order Thinking Skill Biology Questions: Accuracy and Evaluation”. International Journal of Science Education and Teaching, vol. 3, no. 3, Dec. 2024, pp. 126-38, doi:10.14456/ijset.2024.11.