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Sand, Jordan M., Bilal Bin Hafeez, Mohammad Sarwar Jamal, Olya Witkowsky, Emily M. Siebers, Joseph Fischer, and Ajit K. Verma. Plumbagin (5-hydroxy-2-methyl-1,4-naphthoquinone), Isolated From Plumbago Zeylanica, Inhibits Ultraviolet Radiation-induced Development of Squamous Cell Carcinomas. Oxford University Press, 2012.

Sand, Jordan M., et al. Plumbagin (5-hydroxy-2-methyl-1,4-naphthoquinone), Isolated From Plumbago Zeylanica, Inhibits Ultraviolet Radiation-induced Development of Squamous Cell Carcinomas. Oxford University Press, 2012.