KUMAR, SARVENDRA, et al. “Enhancement of Apple (Malus Domestica) Productivity and Soil Health through Organic Fertilization and Bio-Inoculants under North-Western Himalayan Region of India”. The Indian Journal of Agricultural Sciences, vol. 88, no. 9, Sept. 2018, pp. 1463-8, https://doi.org/10.56093/ijas.v88i9.83516.