Purwandini APE, Siwanto ME. The Impact Of Multiplication Board Learning Innovation On The Multiplication Skills Of Third-Grade Elementary School Students. JKPM [Internet]. 2026 Jan. 28 [cited 2026 Feb. 2];5(1):44-9. Available from: https://ejurnal.univamedan.ac.id/index.php/jkpm/article/view/1136