Bano, A., A. Nosheen, and F. ullah. “Comparative Study for the Effect of Biofertilizers and Chemical Fertilizers on Soybean Oil Content and Its Potential for Biodiesel Production: Effect of Fertilizers on Soybean Oil Content”. Biological Sciences - PJSIR, vol. 52, no. 5, Oct. 2009, pp. 264-9, https://v2.pjsir.org/index.php/biological-sciences/article/view/559.