Yunita Susanti, Laily, and Rafiatul Hasanah. “Development of A Basic Chemistry E-Book Enhanced With Multiple Representations and STEM Activities”. Journal of Tropical Chemistry Research and Education 7, no. 2 (October 1, 2025): 95–108. Accessed December 6, 2025. https://ejournal.uin-suka.ac.id/tarbiyah/jtcre/article/view/10588.