“ Effect of Some Concentrations of Plant Extracts in Growth and Yield of Pea (Pisum Sativum L.)”. Journal of the College of Basic Education 19, no. 77 (December 20, 2022): 705–711. Accessed July 18, 2024. https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/7875.