Salsabilah IP, Panglipur IR, Hidayatin N. Application of Double Loop Problem Solving to Improve Mathematical Literacy Skills in Junior High School Students in Learning to Build a Flat Side Space. JELMaR [Internet]. 2024 Nov. 4 [cited 2026 Aug. 25];5(2):97-103. Available from: https://jelmar.wisnuwardhana.ac.id/index.php/jelmar/article/view/178