Al Masoudi, Luluah M, et al. “Seed Macro- And Micro-Morphology of Some Species Of Kickxia Dumort, Scrophularia L. And Plantago L. From Saudi Arabia”. Bangladesh Journal of Plant Taxonomy, vol. 28, no. 2, Dec. 2021, pp. 385-93, doi:10.3329/bjpt.v28i2.57134.