Salsabilah, Intan Permata, Indah Rahayu Panglipur, and Nur Hidayatin. “Application of Double Loop Problem Solving to Improve Mathematical Literacy Skills in Junior High School Students in Learning to Build a Flat Side Space”. Journal of Education and Learning Mathematics Research (JELMaR) 5, no. 2 (November 4, 2024): 97–103. Accessed August 25, 2026. https://jelmar.wisnuwardhana.ac.id/index.php/jelmar/article/view/178.