Sumiati, Ira, Endang Rusyaman, Betty Subartini, Sukono ., and Ruly Budiono. “The Application of Fractional Derivatives through Riemannliouville Approach to Xanthan Gum Viscoelasticity”. International Journal of Engineering and Technology 7, no. 4 (September 24, 2018): 2633–2637. Accessed May 18, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/15254.