Nurdiyanto R, Khasanah U, Kristanto F, Pujianto P. Content analysis of the revised K-13 science textbook grade VII SMP/MTs on disaster risk reduction instruction. J. Sc. Edu. Research [Internet]. 2019 Nov. 11 [cited 2025 May 9];3(2):95-102. Available from: https://journal.uny.ac.id/index.php/jser/article/view/30625