Putu Darsana, Krisda Samphantharak, and Anek Silapapun, “Genetic Potential of Exotic Germplasm Introduced from Different Latitudes for the Improvement of Tropical Maize (Zea mays L.)”, Agr. Nat. Resour., vol. 38, no. 1, pp. 1–10, Feb. 2004.