Trejo, 2005. Journal of Agriculture and Rural Development in the Tropics and Subtropics, supplement N°85. Kassel University Press GmbH

Trejo, L. W., 2005. Strategies to improve the use of limited nutrient resources in pig production in the tropics. J. Agric. Rural Dev. Trop. Subtrop., supplement N°85. Kassel University Press GmbH