Paul, Gour Chandra, Md Masum Murshed, Md Mamunur Rasid, and Md Morshed Bin Shiraj. “Approximation of a Complex Geometric Domain in Polar Coordinates”. GANIT: Journal of Bangladesh Mathematical Society 38 (December 30, 2018): 105–118. Accessed January 29, 2023. https://banglajol.info/index.php/GANIT/article/view/39790.