Ngoc Anh, Luu Dam, 		Hung, Nguyen Quang, 		Thanh, Nguyen, AND 		Truong, Do.
" Piper Ribesioides Wall., a Newly Recorded Species for the Flora of Vietnam" <em>VNU Journal of Science: Natural Sciences and Technology</em> [Online], Volume 37 Number 2 (28 June 2021)