HASSAN, Vahel Ismael; MOHAMMED, Bakhtiyar Hassan; HASHIM, Farhad Ali. Comparison between Walkley- Black and Loss- on- Ignition methods for organic carbon estimation in soil from different locations. Kufa Journal for Agricultural Sciences, Kufa, Najaf, IRAQ, v. 9, n. 2, 2017. Disponível em: https://journal.uokufa.edu.iq/index.php/kjas/article/view/10109. Acesso em: 8 aug. 2026.