Pham Tan Quoc, L., L. Thi Tra Giang, N. Thi Ngoc Hanh, and G. Thuy Phuong Quyen and Nguyen Thi Phuong Thao. “OPTIMIZATION OF ESSENTIAL OIL PRODUCTION FROM CITRUS MICROCARPA (HASSK.) BUNGE BY CENTRAL COMPOSITE FACE CENTERED (CCF) MODEL”. Journal of Microbiology, Biotechnology and Food Sciences, vol. 3, no. 3, Dec. 2013, pp. 195-8, https://office2.jmbfs.org/index.php/JMBFS/article/view/7029.