1. 1. Malhotra VK (1998) Biochemistry for Students. Tenth Edition. Jaypee. Brothers Medical Publishers (P) Ltd, New Delhi, India. Link: https://goo.gl/UQQ3zd
2. 2. Eruvbetine D (2003) Canine Nutrition and Health. A paper presented at the seminar organized by Kensington Pharmaceuticals Nig. Ltd. Link: https://goo.gl/eethw5
3. 3. Hays VW, Swenson MJ (1985) Minerals and Bones. In: Dukes' Physiology of Domestic Animals, Tenth Edition. 449-466. Link: https://goo.gl/973QrZ
4. 4. Ozcan M (2003) Mineral Contents of some Plants used as condiments in Turkey. Food Chemistry 84: 437-440. Link: https://goo.gl/AcFJQe
5. 5. Darby WJ (1976) Trace elements in human health and disease, Prasad AS. and Oberleas D. Eds. Academic Press, New York, San Francisco, London 1: 17. Link: https://goo.gl/zN3KYb