Courtois, Brigitte, Huu Hong Nguyen, Van Hien Pham, Thi Thu Huong Vo, Cora Carandang, and Tong Xuan Vo. 1997. “Genetic Diversity of Traditional Varieties of Upland Rice from Vietnam and Prospects Offered by Improved Varieties”. Cahiers Agricultures 6 (5):163-67. https://revues.cirad.fr/index.php/cahiers-agricultures/article/view/30042.