Matondang, Khoiruddin, Risna Mira Bella Saragih, Nur Rahmi Rizqi, and Rahmi Khoirun Nisa. “PELATIHAN STRATEGI BERHITUNG CEPAT DALAM MATEMATIKA”. JALIYE: Jurnal Abdimas, Loyalitas, dan Edukasi 3, no. 2 (December 29, 2024): 78–83. Accessed July 29, 2025. https://univamedan.ac.id/ejurnal/index.php/jaliye/article/view/882.