J. A. GALBIATTI, D. B. BARENSE, S. PARRA, A. D. S. B. NICOLETTI, and I. H. L. CAVALKANTE, “Effect of boron and soil moisture on nutritional status and grain yield of sunflower (Helianthus annuus)”, Indian J Agri Sci, vol. 83, no. 3, Mar. 2013, doi: 10.56093/ijas.v83i3.28361.