Ercisli, Sezai. “Determination of Pollen Viability and <i>in vitro< i> Pollen Germination of <i>Rosa dumalis< i> and <i>Rosa villosa< I>”;. Bangladesh Journal of Botany, vol. 36, no. 2, Oct. 2008, pp. 185-7, doi:10.3329/bjb.v36i2.1511.