Fransiska, N. R. ., and H. . Sidabutar. “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, vol. 1, no. 7, July 2022, pp. 701-13, doi:10.55904/educenter.v1i7.262.