Utami, R., H. M. Zulfiati, and D. Hasanah. “Moral Development of Grade IV Elementary School Students Based on Kohlberg’s Theory”. Edumaspul: Jurnal Pendidikan, Vol. 7, no. 2, Oct. 2023, pp. 5566-71, doi:10.33487/edumaspul.v7i2.6796.