1. Official Methods of Analysis;AOAC,1990
2. Food Process Engineering and Technology;Berk,2013
3. A Handbook of Unit Operations;Blackadder,1982
4. Study of solid-liquid extraction kinetics of total polyphenols from grape seeds;Bucić-Kojić;J. Food Eng.,2007
5. Yerba mate: export & tradition in Brazil;Cavalcanti;Eur. J. Bus. Soc. Sci.,2013