Wahyuni, Sri, Widyasari, and La Ode Amril. 2022. “ MATEMATIKA PESERTA DIDIK SDN HARJASARI PENGARUH MODEL PROBLEM BASED LEARNING (PBL) BERBANTUAN LECTORA TERHADAP MINAT BELAJAR 01”. AL - KAFF: JURNAL SOSIAL HUMANIORA 5 (3). http://103.127.96.46/index.php/al-kaff/article/view/6536.