FITRA SYAWA HARAHAP; ARMAN, I. .; HARAHAP, N. .; AHMAD SYAWALUDDIN, F. .; FITRA YANA, R. . Provision of Chicken Manure and Urea Fertilizer on the Chemical Characteristics of Ultisol Soil in Bilah Barat District. International Journal of Science and Environment (IJSE), [S. l.], v. 2, n. 3, p. 98–103, 2022. DOI: 10.51601/ijse.v2i3.34. Disponível em: https://ijsenet.com/index.php/IJSE/article/view/34. Acesso em: 12 dec. 2024.