Mahmudah M, Munzil M, Yulianti E. Validity and Reliability Study of Science-Edutainment Interactive Multimedia on Earth Topic for the 7th Graders of Junior High Schools. J. Penelit. Fis. Apl. [Internet]. 2018Jun.30 [cited 2024May6];8(1):42-50. Available from: https://journal.unesa.ac.id/index.php/jpfa/article/view/2032