B. Shofran

Truong, V. D., McFeeters, R. F., Thompson, R. T., Dean, L. L., & Shofran, B. (2007). Phenolic acid content and composition in leaves and roots of common commercial sweetpotato (Ipomea batatas L.) cultivars in the United States. Journal of Food Science, 72(6), C343–349. https://doi.org/10.1111/j.1750-3841.2007.00415.x