Luthfiana L, Purwati PD. Development of a Flipbook on Waste Recycling Based on the Problem Based Learning Model: An Effort to Improve Students’ Understanding of Explanatory Texts in Grade V. Jor. Eva. Edu [Internet]. 2025Jul.25 [cited 2025Aug.2];6(3). Available from: https://cahaya-ic.com/index.php/JEE/article/view/1706