“Growth and Yield Response of Sunflower (Helianthus Annuus L.) to Sulphur and Boron Application: Effect of Sulphur and Boron on Sunflower”. 2014. Biological Sciences - PJSIR 57 (1): 5-10. https://doi.org/10.52763/PJSIR.BIOL.SCI.57.1.2014.5.10.