Sari, Y.M., Fiangga, S., Milla, Y.I.E. and Puspaningtyas, N.D. 2023. Exploring students’ proportional reasoning in solving guided-unguided area conservation problem: A case of Indonesian students. Journal on Mathematics Education. 14, 2 (Apr. 2023), 375–394. DOI:https://doi.org/10.22342/jme.v14i2.pp375-394.