A. Cordero F, J. Contreras P, P. Mayhua M, M. Jurado E., and M. Castrejón V., “Phenotypic correlations between production characteristics in the Huacaya alpaca”, Rev. investig. vet. Perú, vol. 22, no. 1, pp. 15–21, Mar. 2011, doi: 10.15381/rivep.v22i1.114.