R. Yuningsih, K. Herlina, U. Rosidin, and M. Setyorini, “Needs Analysis for Developing STEM-PjBL-SSI-Based e-LKPD on Renewable Energy Using Oil Palm Empty Fruit Bunch Waste Context”, J. Prisma. Sains, vol. 14, no. 2, pp. 861–875, May 2026.