Saiprasad, G V S, and P Raghuveer. “Influence of Ethylene Inhibitors and Ethrel on Production of Protocorm Like Bodies in Orchid-Dendrobium ’Sonia’”. Journal of Horticultural Sciences 2, no. 1 (June 30, 2007): 13-18. Accessed April 11, 2021. https://jhs.iihr.res.in/index.php/jhs/article/view/631.