Sumam George, Jeena Mathew and. “Synergistic-Influence of Sulphur and Boron on Enhancing the Productivity of Sesame (Sesamum Indicum L.) Grown in an Entisol of Kerala”. Journal of the Indian Society of Soil Science, vol. 61, no. 2, Aug. 2013, https://epubs.icar.org.in/index.php/JISSS/article/view/32794.