Researching objectives: Evaluating the diversity and using values of essential oil plants at Ben En National Park, Thanh Hoa province. Determining the content and composition of essential oils of some plant species. Determinating the anti-mosquito and anti-microbial activities of essential oils of Zingiber zerumbet (L.) Smith. | Summary of PHD dissertation: Researching and evaluating on the resources of plant containing essential oil at Ben En National Park, Thanh Hoa province, proposing the conservation measures and rational exploitation
