Hamani, Nadhia Al, and Siti Nurul Hidayati. 2021. “VALIDITY OF STUDENT WORKSHEET BASED ON ROLE PLAYING IN HUMAN EXCRETORY SYSTEM MATERIAL TO IMPROVE MOTIVATION AND LEARNING OUTCOMES”. PENSA: E-JURNAL PENDIDIKAN SAINS 9 (1):90-95. https://ejournal.unesa.ac.id/index.php/pensa/article/view/38507.