WASITO, D. R.; INDRIJATI, H. The effectiveness of cooperative learning to improve social skills of kindergarten students. Jurnal Psikologi Ulayat, [S. l.], v. 4, n. 2, p. 160–174, 2017. DOI: 10.24854/jpu62. Disponível em: https://publication.k-pin.org/index.php/jpu/article/view/62. Acesso em: 22 apr. 2025.