“EFFORTS TO IMPROVE 4C SKILLS (CRITICAL THINKING, COLLABORATIVE, COMMUNICATIVE, AND CREATIVE) THROUGH PROJECT-BASED LEARNING”. BIOTIK: Jurnal Ilmiah Biologi Teknologi Dan Kependidikan, vol. 11, no. 2, Sept. 2025, pp. 159-6, https://doi.org/10.22373/biotik.v11i2.18326.