Tahir, Muhammad, Shahzad Ahmed Shah, Muhammad Ayub, Asif Tanveer, and Haseeb-ur- Rehman. “Growth and Yield Response of Sunflower (Helianthus Annuus L.) to Sulphur and Boron Application: Effect of Sulphur and Boron on Sunflower”. Biological Sciences - PJSIR 57, no. 1 (April 28, 2014): 5–10. Accessed November 21, 2024. https://v2.pjsir.org/index.php/biological-sciences/article/view/109.