Aboud, Sajida, Qusay Al-Chalabi, and Abed Mohammed. “Isolation and Partial Purification of Thymidlit Synthease Enzyme from Calus Lettuce Plant (Lactuca Sativa, L.)”. Journal of Education and Science (JES) 19, no. 2 (March 1, 2007): 1–11. Accessed August 6, 2025. https://ojs.uomosul.edu.iq/index.php/edusj/article/view/24088.