1. Referans1. WHO guidelines for assessing quality of herbal medicines with reference to contaminants and residues, World Health Organization, ISBN 978 92 4 159444 8, 2007.
2. Referans2. L.E. Feinendegen and K. Kasperek, Medical aspects of trace element research, Trace Elem. Anal. Chem Med. Biol. 1-17 (1980).
3. Referans3. W. Mertz, Trace elements in human and animal nutrition. Vol. 1-2, San Diego, CA, USA, Academic Press (1987).
4. Referans4. White, P. J., Broadley, M. R. (2009). Biofortification of crops with seven mineral elements often lacking in human diets - iron, zinc, copper, calcium, magnesium, selenium and iodine. New Phytologist, 182(1), 49–84.
5. Referans5. C.Ozcan, 2013, Kırklareli İl Merkezinde Yetişen Bazı Bitki Türlerinin Eser Element Analizleri, 3(1), 184 - 193.