Andini, K. P., & Supriyadi. (2026). Analysis of the Application of the Project-Based Learning Model in Improving the Mutual Cooperation Attitude of Primary School Students: Analisis Penerapan Model Pembelajaran Berbasis Proyek dalam Meningkatkan Sikap Gotong Royong Siswa Sekolah Dasar. Indonesian Journal of Education Methods Development, 21(1), 10.21070/ijemd.v21i1.1090. https://doi.org/10.21070/ijemd.v21i1.1090