Roni Darmawan, Tua Halomoan Harahap. The Effectiveness Of The Cognitive Apprenticeship Model On The Reflective Thinking Skills Of Junior High School Students At Prof. Dr. H. Mohd. Hatta Education And Training Foundation (YPP) In Algebra Learning. EJI [Internet]. 2026 Jun. 27 [cited 2026 Sep. 21];7(1). Available from: https://publication.umsu.ac.id/index.php/eji/article/view/5001