Choudhary, Poonam, et al. “Influence of Selenium and Chitosan on Physico-Chemical Properties of Guava (Psidium Guajava) under Storage”. The Indian Journal of Agricultural Sciences, vol. 90, no. 2, Mar. 2020, pp. 351-5, https://doi.org/10.56093/ijas.v90i2.99021.