NOER ABIDIN, E., & HARIYONO, E. (2019). ECOPRENEURSHIP ON PROJECT-BASED LEARNING (PBL) : AN APPROACH TO INCREASE LEARNING RESPONSE IN PHYSICS. IPF: Inovasi Pendidikan Fisika, 8(2). Retrieved from https://ejournal.unesa.ac.id/index.php/inovasi-pendidikan-fisika/article/view/28884