Amrianto, Fatchur Rohman, Agus Dharmawan, and Murni Sapta Sari. “Development of a 4C Skills Evaluation Instrument for Biology: A Validity and Reliability Study on Indonesian High School Students Learning”. International Journal of Innovative Research and Scientific Studies 7, no. 2 (March 11, 2024): 701–717. Accessed May 9, 2024. https://www.ijirss.com/index.php/ijirss/article/view/2873.