Van Chinh, Hoang, 		Ba Thin, Dau, 		Minh Hoi, Tran, AND 		Thi Huong, Le.
" Studies on the diversity of essential oils plants in Ben En National park, Thanh Hoa Province" <em>VNU Journal of Science: Natural Sciences and Technology</em> [Online], Volume 33 Number 1S (10 October 2017)