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3. Water and mineral contents;Clarke,1985
4. Clarke, R. J., & Walker, L. J. (1975). The interrelationships of potassium contents of green, roasted and instant coffees. In Proceedings of the 7th international scientific colloquium on coffee (pp. 159–163). Hamburg: ASIC—Association Scientifique Internationale du Café.
5. Lipids;Folstar,1985