Nancy Riana,Feronica Eka Putri, Jarudin. Mathematics Playboard Variation (VaPaMaMa) Instructional Media to Improve the Cognitive Abilities of Early Childhood. PEGEGOG [Internet]. 2025 Apr. 13 [cited 2025 May 23];15(4):69-84. Available from: https://pegegog.net/index.php/pegegog/article/view/3926