M. K. Uddin, M. M. Kamal, M. M. Akand, M. M. Hasan, and M. N. A. Chowdhury, “Effect of Different Pollinator Attractant Crops for Seed Setting and Maximizing Seed Yield of Onion”, Int J Appl Sci Biotechnol, vol. 3, no. 4, pp. 737–743, Dec. 2015.