Development of LKPD assisted by phet simulation on material form of energy and their changes to improve creative thinking ability of students at SMP Negeri 2 Sunggal. Jurnal Ilmiah Pendidikan [Internet]. 2022 Sep. 25 [cited 2025 Oct. 1];1(9):632-40. Available from: https://jurnal.arkainstitute.co.id/index.php/educenter/article/view/393