Abdujalilovna, Djalilova Turgunoy, and Sayitjonova Mashkhurakhan Tulqinovna. “Polar Coordinates in Engineering: Methods for Determining the Length of Curved Geometric Shapes”. Miasto Przyszłości, vol. 61, June 2025, pp. 787-90, https://miastoprzyszlosci.com.pl/index.php/mp/article/view/6758.