Jae-Young Choi1, Dereje Damte, Seung-Jin Lee, Jong-Choon Kim and Seung-Chun Park 2012. Antimicrobial Activity of Lemongrass and Oregano essential oil against standard antibiotic resistant Staphylococcus aureus and field isolates from chronic mastitis cow. International Journal of Phytomedicine. 4, 1 (Mar. 2012), 134–139.