Dubey, Y. P., & Bindra, A. D. (2008). Affectivity of Rhizobium leguminosarum vicieae against different nitrogen levels in pea (Pisum sativum)-maize (Zea mays) cropping sequence*. The Indian Journal of Agricultural Sciences, 78(1). https://epubs.icar.org.in/index.php/IJAgS/article/view/9772