Workshop and Deepening of Carbon Chemistry Materials Using Problem-Based Learning to Improve Literacy and Critical Thinking of High School Chemistry Teacher at MGMP Pangandaran [Workshop dan Pendalaman Materi Kimia Karbon Melalui Metode Problem-Based Lear. JPI. 2022;1(2):59-70. Accessed October 9, 2026. https://ejournal-science.upi.edu/jpi/article/view/1575