Andi Ardhila Wahyudi, Nurdin Arsyad and Djadir 2026. Development of Geo-Concept Van Model Student Worksheets Based on Van Hiele’s Hierarchical Geometric Thinking for PGSD Students. International Journal of Education, Vocational and Social Science . 5, 02 (Apr. 2026), 623-635. DOI:https://doi.org/10.63922/ijevss.v5i02.3330.