Vafadar, Mahnaz, Farideh Attar, and Hosein Maroofi. 2010. “Trichome Micromorphology in Drupe of Amygdalus L. (Rosaceae) from Iran”. Acta Botanica Croatica 69 (1). https://www.abc.botanic.hr/index.php/abc/article/view/222.