Essential Oils of <i>Zingiber</i> Species from Vietnam: Chemical Compositions and Biological Activities oleh Le Thi Huong, Nguyen Thanh Chung, Trinh Thi Huong, Ly Ngoc Sam, Nguyen Huy Hung, Isiaka Ajani Ogunwande, Do Ngoc Dai, Le Duy Linh, William N. Setzer