Rahmah, Amalia Nailoe, Ahmad Susanto, and Muhamad Sofian Hadi. 2025. “Strategies for Improving Multiplication Skills Using Stick Manipulatives Among Second-Grade Elementary School Students in Balikpapan”. Jurnal Pendidikan Matematika Universitas Lampung 13 (4):268-78. https://doi.org/10.23960/mtk/v13i4.pp268-278.