Fransiska, N.R. and Sidabutar, H. 2022. 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. Educenter : Jurnal Ilmiah Pendidikan. 1, 7 (Jul. 2022), 701–713. DOI:https://doi.org/10.55904/educenter.v1i7.262.