Putri, Regina, Relsas Yogica, Muhyiatul Fadilah, and Sa’diatul Fuadiyah. 2021. “Development of Student Worksheets (LKPD) Based on Syntax Learning Model Everyone Is A Teacher Here (ETH) on Ecosystem Component Material for Class X SMA/MA”. Ruang-Ruang Kelas : Jurnal Pendidikan Biologi 1 (1), 1-7. https://doi.org/10.24036/rrkjurnal.v1i1.7.