qoini anisa zatun nitha, ghatsa naura anandia, mala silvia nuril, utami susia, puspita wulan. THE EFFECT OF STAIRCASE MEDIA ON UNDERSTANDING THE CONCEPT OF LENGTH MEASUREMENT IN ELEMENTARY SCHOOL. Journal of Pedagogical Content Knowledge [Internet]. 2025 Oct. 17 [cited 2026 Jun. 29];1(2):69-74. Available from: https://jurnal.pbs.fkip.unila.ac.id/index.php/JPCK/article/view/1188