Abdunazarov Rabimkul, and Halimov Oktam Haydarovich. “Calculating The Volume Of Liquid In Cylinder Vessels Which Have Curved Borders Level 2 Geometric Surface”. The American Journal of Applied Sciences, vol. 3, no. 12, Dec. 2021, pp. 16-21, doi:10.37547/tajas/Volume03Issue12-03 .