Hasibuan, M.U. and Rakhmawati, F. 2025. Ethnomathematical Expolarization of The Portibi Temple Building in North Padang Lawas Regency. Journal of Mathematics Instruction, Social Research and Opinion. 4, 3 (Aug. 2025), 817–832. DOI:https://doi.org/10.58421/misro.v4i3.683.