VERMA, SHER SINGH, et al. “Standardization of Seed Germination Technique in Khurasani-Ajavayan (Hyoscyamus Niger) Seeds”. The Indian Journal of Agricultural Sciences, vol. 84, no. 11, Nov. 2014, pp. 1382–5, https://doi.org/10.56093/ijas.v84i11.44643.