Asy Syaffa, W., & Iin Murtini. (2026). Effectiveness of Using QR Code-Based Biotechnology Practical E-Instructions for Junior High School Students to Improve Critical Thinking Skills. BIO-EDU: Jurnal Pendidikan Biologi, 11(1), 66–73. https://doi.org/10.32938/jbe.v11i1.9981