Pratama, M. D., S. Premjet, C. Choopayak, and D.- Premjet. “Chemical composition and antioxidant activities of essential oil from Somsa (Citrus aurantium L.) in Phitsanulok province, Thailand”. Asia-Pacific Journal of Science and Technology, vol. 24, no. 1, Nov. 2018, pp. APST-24, doi:10.14456/apst.2019.2.