https://matematiranje.in.rs/III%20godina/1.planimetrija%20i%20poliedri/5.PRIZMA.pdf
https://informatematika.weebly.com/uploads/2/6/6/2/26628539/k3__8.raz_-_pripr._.pdf
https://www.diofant.org/FAJLOVI/INTEGRAL%20PDF/INTEGRAL%204/TEMA%203%20-%20KOCKA%20I%20KVADAR.pdf