Singh, V.P., Jai Prakash, R.K. Singh, and A. Nataraj. 2012. “Effect of Spacing and Biofertilizers on Growth and Nutrients of Stevia (Stevia Rebaudiana Bertoni)”. Indian Journal of Horticulture 69 (02):246-51. https://journal.iahs.org.in/index.php/ijh/article/view/1982.