Köksal, E.A., Asci, B. and Pinar, N.M. 2010. A comparison of pollen grains of Potentilla recta L. (Rosaceae) groups A, B & C in Turkey. Bangladesh Journal of Plant Taxonomy. 17, 1 (Jun. 2010), 93–96. DOI:https://doi.org/10.3329/bjpt.v17i1.5395.