“Development of PBL-STEM-Based E-LKPD to Improve students’ Science Literacy Skills on Reaction Rate Materials”. Jurnal Pendidikan Kimia 13, no. 2 (August 1, 2021): 113–129. Accessed March 23, 2026. https://jurnal.unimed.ac.id/2012/index.php/jpk/article/view/26980.