Aristyani, K. and Hidayati, S. (2020) “VALIDITY OF SCIENCE BOOK ORIENTED SETS IN ENVIRONMENTAL POLLUTION MATERIAL FOR JUNIOR HIGH SCHOOL STUDENTS”, PENSA: E-JURNAL PENDIDIKAN SAINS, 8(2), pp. 174-177. Available at: https://ejournal.unesa.ac.id/index.php/pensa/article/view/38347 (Accessed: 2May2024).