Duha , A. A., & Amjed , H. K. (2025). Isolation and characterization of protocatechuic acid from Pterospermum acerifolium (L.) (F. Sterculiaceae) cultivated in Iraq. Plant Science Today, 12(4). https://doi.org/10.14719/pst.9594 (Original work published November 5, 2025)