1. Anonymous (1983). Gıda Maddeleri Muayene ve Analiz Yöntemleri Kitabı, T.C.Tarım Orman ve Köy İşleri Genel Müdürlüğü, Yayın no. 65, Özel yayın no: 2-105, Ankara
2. Anonymous (1997). Agriculture structure. State Instıtute of Statistics Prime Ministry, Republic of Turkey
3. Anonymous (2001). http://www.gardenbed.com/source/20/1930 pro.asp
4. Official methods of analysis;AOAC,1975
5. Officials methods of analysis;AOAC,1984