Ngan, Dang, Thi Thanh Huong, Ha, Thao, Pham, Hai, Nguyen, Hai Yen, Nguyen, Thuong, Bui, AND Hien, Nguyen. " Evaluation of Two Methods of Extracting Essential Oils from Citrus maxima" VNU Journal of Science: Medical and Pharmaceutical Sciences [Online], Volume 38 Number 2 (24 June 2022)