Aseel M.H. H. Al-Khafaji and Kadhim D. H. Al-jubouri 2023. UPGRADING GROWTH, YIELD, AND FOLATE LEVELS OF LETTUCE VIA SALICYLIC ACID AND SPIRULINA, VERMICOMPOST AQUEOUS EXTRACTS. IRAQI JOURNAL OF AGRICULTURAL SCIENCES. 54, 1 (Feb. 2023), 235–241. DOI:https://doi.org/10.36103/ijas.v54i1.1696.