et. al., Piyush Singhal,. “Extrapolation for Positioning and Navigation Focused Content - Based Recommendation Mathematical Framework”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 9 (April 24, 2021): 752–756. Accessed May 6, 2025. https://turcomat.org/index.php/turkbilmat/article/view/3187.