Thu Huong, B. T., H. M. Tuong, L. V. Son, and N. H. Hoa. “Assessment Ploidy Level, Genetic Relationship by Rapd Markers of Progenies and Parental Lines in Hippeastrum”. Academia Journal of Biology, vol. 36, no. 2, Oct. 2014, pp. 225-31, doi:10.15625/0866-7160/v36n2.5120.