A Pengaruh Model Project Based Learning Terhadap Sikap Gotong Royong Siswa Sekolah Dasar . j.ilm.soulmath [Internet]. 2023 Nov. 23 [cited 2026 Jun. 16];11(2):177-90. Available from: https://ejournal.unitomo.ac.id/index.php/mipa/article/view/6553