Hung Duy Nguyen, Long-Fei Fu, Yi-GangWei and Truong Van Do 2019. Two newly recorded species of Urticaceae among the flora of Vietnam used as green foods for H’mong beef cattle. Vietnam Journal of Science, Technology and Engineering. 61, 3 (Sep. 2019), 57-60. DOI:https://doi.org/10.31276/VJSTE.61(3).57-60.