Dr. S. Venkateswara Rao, S. Srinivasulu. “Non-Conventional Method of Determination of Refractive Index Using Fiber Optic U-Shaped Glass Sensor in the Study of Certain Biological Fluids”. Annals of the Romanian Society for Cell Biology (March 28, 2021): 5573–5588. Accessed May 7, 2024. http://annalsofrscb.ro/index.php/journal/article/view/2078.