Đức, Nguyễn Văn, Trần Thị Phương Nhung, Trần Văn Thắng, Châu Võ Trung Thông, Hoàng Kim Toản, and Trương Thị Hồng Hải. “Growth, Development and Yield of Several Sweetgrass (Stevia Rebaudiana Bertoni) Varieties in Winter Crop 2018 in Thua Thien Hue ”. Hue University Journal of Science: Natural Science 128, no. 1E (October 25, 2019): 133-141. Accessed May 2, 2024. https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/5420.