Hassan, A.K. M. Sayeed, Nadira Begum, Rebeka Sultana, and Rahima Khatun. 2011. “In Vitro Shoot Proliferation and Plant Regeneration of Phlogacanthus Thyrsiflorus Nees. A Rare Medicinal Shrub of Bangladesh”. Plant Tissue Culture and Biotechnology 21 (2):135-41. https://doi.org/10.3329/ptcb.v21i2.10236.