Gondal, M. R., Rizvi, S. A., Hanif, M. S., Mahmood, T., Naseem, W., Hayat, S., Mustafa, S., Pervez, A., and Khan, A. “Developing the quality seed production technology for berseem (Trifolium alexandrinum L.) fodder”. International Journal of Agricultural Technology, vol. 17, no. 2, Mar. 2021, pp. 479-96, https://li04.tci-thaijo.org/index.php/IJAT/article/view/5975.