Jawasi J, Widada W, Susanta A. Bridging the gap between formal structure and cognitive representation: A systematic review of metric space topology learning. J. Math Educ. Nusant. Wahana Publ. Karya Tulis Ilm. di Bid. Pendidik. Mat. 2026;12(1):212-221. doi:10.29407/jmen.v12i1.28807