1. “Apple”.Jinxiang High Garlics Co., Ltd. Retrieved 2008–08–18.
2. Sharma, R. (2005).Improve your health with Apple, Guava, Mango. Diamond Pocket Books (P) Ltd. pp. 22.
3. Carrington, S., Fraser, H.C. (2003).Grapefruit. A ˜ Z of Barbados Heritage. The statistical Division:Food and Agricultural Organization of United Nation: Economic and Social Department.
4. Giannecchini, T., Zani, F., Bianchi, A. and Pizzaferri, P.(2001).Erboristeria Domani, 37.
5. Adams, R.P. (2001).Identification of Essential oil Components by Gas Chromatography/ Quadrupole Mass spectroscopy.Allured Publishing Corp, Carol Stream, IL.