Fernando, M.S.W., and S.H.S.A. De Silva. “Nursery Method for Damping - off Disease in True Seed Cultivation of Cluster Onion”. International Journal of Environment, Agriculture and Biotechnology 4, no. 1 (October 10, 2019). Accessed November 25, 2024. https://journal-repository.com/index.php/ijeab/article/view/812.