Jen, J. J. (1989). Quality factors of fruits and vegetables - Chemistry and technology: Developed from a symposium sponsored by the Division of Agricultural and Food Chemistry at the 196th National Meeting of the American Chemical Society, Los Angeles, California, September 25-30, 1988. Washington, DC: American Chemical Society.

Jen, Joseph J. Quality Factors of Fruits and Vegetables - Chemistry and Technology: Developed From a Symposium Sponsored By the Division of Agricultural and Food Chemistry At the 196th National Meeting of the American Chemical Society, Los Angeles, California, September 25-30, 1988. Washington, DC: American Chemical Society, 1989.

Jen, Joseph J. Quality Factors of Fruits and Vegetables - Chemistry and Technology: Developed From a Symposium Sponsored By the Division of Agricultural and Food Chemistry At the 196th National Meeting of the American Chemical Society, Los Angeles, California, September 25-30, 1988. Washington, DC: American Chemical Society, 1989.