KANCHANOMAI, R.; SIRIVEJAPUNDU, S.; LIMPOKA, M. Study on Copper and Iron Serum Levels in Dairy Cows. Agriculture and Natural Resources, Bangkok, Thailand, v. 20, n. 3, p. 314–317, 1986. Disponível em: https://li01.tci-thaijo.org/index.php/anres/article/view/242674. Acesso em: 18 sep. 2026.