T. T. Luong, N. T. Thu, N. T. Ninh, and N. D. Thanh, “Transfering Shrunken 2 (Sh2) gene coding for adp-glucose pyrophosphorylase enzyme into some inbred maize lines by Agrobacterium tumefaciens mediated gene transfer”, AJB, vol. 36, no. 1, pp. 99–109, Aug. 2014.