Angham Talal Mahmoud Al-Chalabi, & Fathel F. R. Ibraheem. (2023). Effect of cultivation system, fertilization with calcium and organic nutrient (Tecamin Tex-fruit) on growth, yield and quality of two lettuce cultivars Lactuca sativa L. Eastern Journal of Agricultural and Biological Sciences, 3(1), 77–85. https://doi.org/10.53906/ejabs.v3i1.192