Mandal, Jajati, et al. “Evaluation of Different Extractants and Profile Distribution of Boron in Guava Orchard in an Inceptisol of Bihar”. International Journal of Bio-Resource and Stress Management, vol. 7, no. Jun, 3, June 2023, pp. 398-05, https://www.ojs.pphouse.org/index.php/IJBSM/article/view/872.