WORKU BURAYU; SOMBAT CHINAWONG; RUNGSIT SUWANKETNIKOM; THONGCHAI MALA; SUNANTA JUNTAKOOL. Tillage System and Fertilizer Rate Effects on Sorghum Productivity in the Central Rift Valley of Oromiya, Ethiopia. Agriculture and Natural Resources, Bangkok, Thailand, v. 40, n. 1, p. 1–10, 2006. Disponível em: https://li01.tci-thaijo.org/index.php/anres/article/view/243498. Acesso em: 17 sep. 2026.