Sipayung, Suanna. “Development of an Electronic Student Worksheet Integrating Project Based Learning on Biotechnology to Enhance Psychomotor Learning Outcomes of Grade XII Students”. Bioilmi: Jurnal Pendidikan, vol. 11, no. 2, Dec. 2025, pp. 158-72, https://doi.org/10.19109/bioilmi.v11i2.31285.