«Effects of Castration on Epidural Administration of Lidocaine-Tramadol in West African Dwarf (Wad) Goats». (2019) Nigerian Journal of Physiological Sciences, 34(2), p. 141–147. Disponible a: https://ojshostng.com/index.php/njphysiologicalsciences/article/view/463 (Consulta: 26 abril 2026).