Rahmawati AV, Muchlis M. The Effectiveness of Student Worksheet with Problem Based Learning and Ethnoscience to Improve Critical Thinking Skills on Chemical Bonding Material: -. pendipa. jurnal. pendik. sains [Internet]. 2025 May 29 [cited 2025 Aug. 6];9(2):264-70. Available from: https://ejournal.unib.ac.id/pendipa/article/view/42067