Purwanti, Kartika Yuni, and Ika Silfiana Arifatul Khoiriyah. “The Effectiveness of Jarimatika Methods With Tapertis Media on Students’ Multiplication Concept Understanding”. Jurnal Penelitian Dan Pengkajian Ilmu Pendidikan: E-Saintika, vol. 4, no. 3, Nov. 2020, pp. 332-41, https://doi.org/10.36312/e-saintika.v4i3.267.