Syabrina FA, Wiryanto W, Mariana N. Hypothetical Learning Trajectory: Operasi Penjumlahan dan Pengurangan Melalui Etnomatematika Konteks Jamu Sinom. JRPD [Internet]. 2022May31 [cited 2024May19];8(2):125-32. Available from: https://journal.unesa.ac.id/index.php/PD/article/view/21198