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Herron, Steven R., Jacques A. E. Benen, Robert D. Scavetta, Jaap Visser, και Frances Jurnak. Structure and Function of Pectic Enzymes: Virulence Factors Of Plant Pathogens. The National Academy of Sciences, 2000.

Herron, Steven R., et al. Structure and Function of Pectic Enzymes: Virulence Factors Of Plant Pathogens. The National Academy of Sciences, 2000.