Mallick, P.K. 2021. Karyomorphology, Meiotic Behaviours and Pollen Fertility of Calendula officinalis L. (Calenduleae- Asteraceae). International Journal of Applied Sciences and Biotechnology. 9, 1 (Mar. 2021), 75–79. DOI:https://doi.org/10.3126/ijasbt.v9i1.36011.