K. V. SONI, and B. D. BHUVA. “EFFECT OF CHROMIUM AND MANGANESE METAL ON BIOMASS AND GROWTH RATE OF SOME PULSES”. International Journal of Pharma and Bio Sciences, vol. 6, no. 2, June 2015, pp. 67-78, https://ijpbs.net/index.php/journal/article/view/4203.