Vigit AA. Application of the Project Based Learning Model in Natural and Social Science Subjects to Increase the Activeness of Class IV Students at SD Sumoroto 02 Ponorogo Regency. basica [Internet]. 2024 Nov. 13 [cited 2025 Dec. 16];3(1):184-9. Available from: https://ejournal.insuriponorogo.ac.id/index.php/basica/article/view/6054