“WORK SHEET DEVELOPMENT (LKPD) BASED ON GUIDED DISCOVERY LEARNING MODEL FOR EXTRESSION SYSTEM MATERIALS IN CLASS VIII SMP / MTS”. Universe 2, no. 1 (Juni 17, 2021): 52–58. Diakses Agustus 16, 2026. http://universe.ppj.unp.ac.id/index.php/universe/article/view/49.