Student workshet the development based on stem (sciene, technology, engineering and mathematics) based construct 2 assisted lkpd on excretion system materials to improve student’s science literature skills in SMA Negeri 1 Kuala T.P. 2021/2022. (2022). Educenter : Jurnal Ilmiah Pendidikan, 1(7), 701-713. https://doi.org/10.55904/educenter.v1i7.262