Noor Hiqmah and Sri Handayani 2026. The Effect of the Use of Project Based Learning (PjBL) Learning Model on the Creativity and Metacognition of Class X Students on Ecoprinting Materials of the Green Chemistry Concept. International Journal of Educational Development. 3, 3 (Jul. 2026), 01–09. DOI:https://doi.org/10.61132/ijed.v3i3.487.