ANNISA, Rizkyka Nur; MARYATUN, Ika Budi. Development A 3R-Integrated Project Based Learning Model: Fostering Ecological Awareness And Pro-Environmental Behavior In Early Childhood. Jurnal Obsesi : Jurnal Pendidikan Anak Usia Dini, [S. l.], v. 10, n. 5, p. 3054–3067, 2026. DOI: 10.31004/obsesi.v10i5.8547. Disponível em: https://obsesi.or.id/index.php/obsesi/article/view/8547. Acesso em: 7 oct. 2026.