Dewi NKAK. Discovery Learning in E-Book with Natural Science Lesson at Elementary School . indonesian j. educ. res. rev. [Internet]. 22 Februari 2022 [dikutip 17 Agustus 2024];5(1):111-22. Tersedia pada: https://ejournal.undiksha.ac.id/index.php/IJERR/article/view/44733