Sarwar, A.K.M. Golam, and Hideki Takahashi. “Pollen Morphology of <i>Rhododendron< i> L. And Related Genera and Its Taxonomic Significance”. Bangladesh Journal of Plant Taxonomy 20, no. 2 (December 22, 2013): 185–199. Accessed September 22, 2025. https://www.banglajol.info/index.php/BJPT/article/view/17393.